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55253737 = 711717581
BaseRepresentation
bin1101001011000…
…1101011101001
310211222011212201
43102301223221
5103121104422
65252140201
71240435420
oct322615351
9124864781
1055253737
1129209a50
1216607661
13b5a7826
1474a42b7
154cb6727
hex34b1ae9

55253737 has 8 divisors (see below), whose sum is σ = 68887872. Its totient is φ = 43054800.

The previous prime is 55253713. The next prime is 55253741. The reversal of 55253737 is 73735255.

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 55253737 - 215 = 55220969 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 55253696 and 55253705.

It is not an unprimeable number, because it can be changed into a prime (55253137) 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, 358714 + ... + 358867.

It is an arithmetic number, because the mean of its divisors is an integer number (8610984).

Almost surely, 255253737 is an apocalyptic number.

It is an amenable number.

55253737 is a deficient number, since it is larger than the sum of its proper divisors (13634135).

55253737 is a wasteful number, since it uses less digits than its factorization.

55253737 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 717599.

The product of its digits is 110250, while the sum is 37.

The square root of 55253737 is about 7433.2857472318. The cubic root of 55253737 is about 380.8791670703.

It can be divided in two parts, 552 and 53737, that added together give a square (54289 = 2332).

The spelling of 55253737 in words is "fifty-five million, two hundred fifty-three thousand, seven hundred thirty-seven".

Divisors: 1 7 11 77 717581 5023067 7893391 55253737