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55312732751 = 3753112325117
BaseRepresentation
bin110011100000111001…
…010101001001001111
312021202211122221212112
4303200321111021033
51401240024422001
641224343454235
73665462320343
oct634071251117
9167684587775
1055312732751
1121504660881
12a87815737b
1352a6636a83
14296a15b623
15168aec2cbb
hexce0e5524f

55312732751 has 16 divisors (see below), whose sum is σ = 57933360864. Its totient is φ = 52753244544.

The previous prime is 55312732747. The next prime is 55312732757. The reversal of 55312732751 is 15723721355.

55312732751 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a cyclic number.

It is not a de Polignac number, because 55312732751 - 22 = 55312732747 is a prime.

It is a Smith number, since the sum of its digits (41) coincides with the sum of the digits of its prime factors. Since it is squarefree, it is also a hoax number.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 55312732699 and 55312732708.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (55312732757) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 2189645 + ... + 2214761.

It is an arithmetic number, because the mean of its divisors is an integer number (3620835054).

Almost surely, 255312732751 is an apocalyptic number.

55312732751 is a deficient number, since it is larger than the sum of its proper divisors (2620628113).

55312732751 is a wasteful number, since it uses less digits than its factorization.

55312732751 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 26330.

The product of its digits is 220500, while the sum is 41.

The spelling of 55312732751 in words is "fifty-five billion, three hundred twelve million, seven hundred thirty-two thousand, seven hundred fifty-one".

Divisors: 1 37 53 1123 1961 25117 41551 59519 929329 1331201 2202203 28206391 49254437 1043636467 1494938723 55312732751