57442655 has 8 divisors (see below), whose sum is σ = 69228432. Its totient is φ = 45755968.

The previous prime is 57442613. The next prime is 57442657. The reversal of 57442655 is 55624475.

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 57442655 - 2¹⁶ = 57377119 is a prime.

It is a super-2 number, since 2×57442655² = 6599317226898050, which contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (57442657) 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, 23489 + ... + 25818.

It is an arithmetic number, because the mean of its divisors is an integer number (8653554).

Almost surely, 2^57442655 is an apocalyptic number.

57442655 is a deficient number, since it is larger than the sum of its proper divisors (11785777).

57442655 is a wasteful number, since it uses less digits than its factorization.

57442655 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 49545.

The product of its digits is 168000, while the sum is 38.

The square root of 57442655 is about 7579.0932835003. The cubic root of 57442655 is about 385.8437782279.

The spelling of 57442655 in words is "fifty-seven million, four hundred forty-two thousand, six hundred fifty-five".