57542455 has 4 divisors (see below), whose sum is σ = 69050952. Its totient is φ = 46033960.

The previous prime is 57542449. The next prime is 57542473. The reversal of 57542455 is 55424575.

It is a semiprime because it is the product of two primes.

It is a de Polignac number, because none of the positive numbers 2^k-57542455 is a prime.

It is a super-2 number, since 2×57542455² = 6622268254854050, which contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 5754241 + ... + 5754250.

It is an arithmetic number, because the mean of its divisors is an integer number (17262738).

Almost surely, 2^57542455 is an apocalyptic number.

57542455 is a deficient number, since it is larger than the sum of its proper divisors (11508497).

57542455 is a wasteful number, since it uses less digits than its factorization.

57542455 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 11508496.

The product of its digits is 140000, while the sum is 37.

The square root of 57542455 is about 7585.6743273093. The cubic root of 57542455 is about 386.0671019929.

The spelling of 57542455 in words is "fifty-seven million, five hundred forty-two thousand, four hundred fifty-five".