57455505 has 24 divisors (see below), whose sum is σ = 100795968. Its totient is φ = 30271776.

The previous prime is 57455501. The next prime is 57455507. The reversal of 57455505 is 50555475.

It is a happy number.

It is not a de Polignac number, because 57455505 - 2² = 57455501 is a prime.

It is a super-2 number, since 2×57455505² = 6602270109610050, which contains 22 as substring.

It is a self number, because there is not a number n which added to its sum of digits gives 57455505.

It is not an unprimeable number, because it can be changed into a prime (57455501) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 3957 + ... + 11426.

It is an arithmetic number, because the mean of its divisors is an integer number (4199832).

Almost surely, 2^57455505 is an apocalyptic number.

It is an amenable number.

57455505 is a deficient number, since it is larger than the sum of its proper divisors (43340463).

57455505 is a wasteful number, since it uses less digits than its factorization.

57455505 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 15477 (or 15474 counting only the distinct ones).

The product of its (nonzero) digits is 87500, while the sum is 36.

The square root of 57455505 is about 7579.9409628308. The cubic root of 57455505 is about 385.8725473420.

The spelling of 57455505 in words is "fifty-seven million, four hundred fifty-five thousand, five hundred five".