55765957 has 8 divisors (see below), whose sum is σ = 60780384. Its totient is φ = 50855088.

The previous prime is 55765943. The next prime is 55765973. The reversal of 55765957 is 75956755.

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

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-55765957 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 55765957.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (55765937) 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, 24763 + ... + 26920.

It is an arithmetic number, because the mean of its divisors is an integer number (7597548).

Almost surely, 2^55765957 is an apocalyptic number.

It is an amenable number.

55765957 is a deficient number, since it is larger than the sum of its proper divisors (5014427).

55765957 is a wasteful number, since it uses less digits than its factorization.

55765957 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 51779.

The product of its digits is 1653750, while the sum is 49.

The square root of 55765957 is about 7467.6607448384. The cubic root of 55765957 is about 382.0525064198.

The spelling of 55765957 in words is "fifty-five million, seven hundred sixty-five thousand, nine hundred fifty-seven".