57055497 has 16 divisors (see below), whose sum is σ = 77757120. Its totient is φ = 37204992.

The previous prime is 57055457. The next prime is 57055541. The reversal of 57055497 is 79455075.

It is not a de Polignac number, because 57055497 - 2⁸ = 57055241 is a prime.

It is not an unprimeable number, because it can be changed into a prime (57055447) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 24798 + ... + 27000.

It is an arithmetic number, because the mean of its divisors is an integer number (4859820).

Almost surely, 2^57055497 is an apocalyptic number.

It is an amenable number.

57055497 is a deficient number, since it is larger than the sum of its proper divisors (20701623).

57055497 is a wasteful number, since it uses less digits than its factorization.

57055497 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2392.

The product of its (nonzero) digits is 220500, while the sum is 42.

The square root of 57055497 is about 7553.5089197008. The cubic root of 57055497 is about 384.9749733549.

The spelling of 57055497 in words is "fifty-seven million, fifty-five thousand, four hundred ninety-seven".