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55300317631 = 134877872231
BaseRepresentation
bin110011100000001001…
…111110000110111111
312021201222022012112021
4303200021332012333
51401223340131011
641223221421011
73665251641556
oct634011760677
9167658265467
1055300317631
11214a8651149
12a873b6a767
1352a3baab50
142968648d9d
151689d6e471
hexce027e1bf

55300317631 has 8 divisors (see below), whose sum is σ = 59566467744. Its totient is φ = 51035921760.

The previous prime is 55300317617. The next prime is 55300317643. The reversal of 55300317631 is 13671300355.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 55300317631 - 213 = 55300309439 is a prime.

It is a super-2 number, since 2×553003176312 (a number of 22 digits) contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (55300311631) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 372715 + ... + 499516.

It is an arithmetic number, because the mean of its divisors is an integer number (7445808468).

Almost surely, 255300317631 is an apocalyptic number.

55300317631 is a deficient number, since it is larger than the sum of its proper divisors (4266150113).

55300317631 is a wasteful number, since it uses less digits than its factorization.

55300317631 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 877121.

The product of its (nonzero) digits is 28350, while the sum is 34.

Adding to 55300317631 its reverse (13671300355), we get a palindrome (68971617986).

The spelling of 55300317631 in words is "fifty-five billion, three hundred million, three hundred seventeen thousand, six hundred thirty-one".

Divisors: 1 13 4877 63401 872231 11339003 4253870587 55300317631