65055657 has 8 divisors (see below), whose sum is σ = 89085376. Its totient is φ = 42198192.

The previous prime is 65055647. The next prime is 65055709. The reversal of 65055657 is 75655056.

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

It is not a de Polignac number, because 65055657 - 2⁸ = 65055401 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (65055637) 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, 292933 + ... + 293154.

It is an arithmetic number, because the mean of its divisors is an integer number (11135672).

Almost surely, 2^65055657 is an apocalyptic number.

It is an amenable number.

65055657 is a deficient number, since it is larger than the sum of its proper divisors (24029719).

65055657 is a wasteful number, since it uses less digits than its factorization.

65055657 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 586127.

The product of its (nonzero) digits is 157500, while the sum is 39.

The square root of 65055657 is about 8065.7087103366. The cubic root of 65055657 is about 402.1873028805.

The spelling of 65055657 in words is "sixty-five million, fifty-five thousand, six hundred fifty-seven".