57505457 has 8 divisors (see below), whose sum is σ = 61089600. Its totient is φ = 53977104.

The previous prime is 57505453. The next prime is 57505499. The reversal of 57505457 is 75450575.

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 57505457 - 2² = 57505453 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 57505457.

It is not an unprimeable number, because it can be changed into a prime (57505453) 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, 11813 + ... + 15954.

It is an arithmetic number, because the mean of its divisors is an integer number (7636200).

Almost surely, 2^57505457 is an apocalyptic number.

It is an amenable number.

57505457 is a deficient number, since it is larger than the sum of its proper divisors (3584143).

57505457 is a wasteful number, since it uses less digits than its factorization.

57505457 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 27895.

The product of its (nonzero) digits is 122500, while the sum is 38.

The square root of 57505457 is about 7583.2352594391. The cubic root of 57505457 is about 385.9843412263.

The spelling of 57505457 in words is "fifty-seven million, five hundred five thousand, four hundred fifty-seven".