57740457 has 8 divisors (see below), whose sum is σ = 77022400. Its totient is φ = 38476080.

The previous prime is 57740407. The next prime is 57740489. The reversal of 57740457 is 75404775.

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

It is not a de Polignac number, because 57740457 - 2⁸ = 57740201 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (57740407) 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, 10419 + ... + 14967.

It is an arithmetic number, because the mean of its divisors is an integer number (9627800).

Almost surely, 2^57740457 is an apocalyptic number.

It is an amenable number.

57740457 is a deficient number, since it is larger than the sum of its proper divisors (19281943).

57740457 is a wasteful number, since it uses less digits than its factorization.

57740457 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 8783.

The product of its (nonzero) digits is 137200, while the sum is 39.

The square root of 57740457 is about 7598.7141675418. The cubic root of 57740457 is about 386.5094104717.

The spelling of 57740457 in words is "fifty-seven million, seven hundred forty thousand, four hundred fifty-seven".