57997455 has 32 divisors (see below), whose sum is σ = 99532800. Its totient is φ = 28733952.

The previous prime is 57997403. The next prime is 57997487. The reversal of 57997455 is 55479975.

It is not a de Polignac number, because 57997455 - 2¹⁰ = 57996431 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (51).

It is a junction number, because it is equal to n+sod(n) for n = 57997398 and 57997407.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 18706 + ... + 21584.

It is an arithmetic number, because the mean of its divisors is an integer number (3110400).

Almost surely, 2^57997455 is an apocalyptic number.

57997455 is a deficient number, since it is larger than the sum of its proper divisors (41535345).

57997455 is a wasteful number, since it uses less digits than its factorization.

57997455 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2983.

The product of its digits is 1984500, while the sum is 51.

The square root of 57997455 is about 7615.6060165951. The cubic root of 57997455 is about 387.0820022667.

The spelling of 57997455 in words is "fifty-seven million, nine hundred ninety-seven thousand, four hundred fifty-five".