57445031 has 8 divisors (see below), whose sum is σ = 65715744. Its totient is φ = 49190400.

The previous prime is 57444997. The next prime is 57445039. The reversal of 57445031 is 13054475.

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

It is not a de Polignac number, because 57445031 - 2⁶ = 57444967 is a prime.

It is a super-2 number, since 2×57445031² = 6599863173181922, which contains 22 as substring.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 57444985 and 57445003.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (57445039) 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, 4991 + ... + 11823.

It is an arithmetic number, because the mean of its divisors is an integer number (8214468).

Almost surely, 2^57445031 is an apocalyptic number.

57445031 is a deficient number, since it is larger than the sum of its proper divisors (8270713).

57445031 is a wasteful number, since it uses less digits than its factorization.

57445031 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 8041.

The product of its (nonzero) digits is 8400, while the sum is 29.

The square root of 57445031 is about 7579.2500288617. The cubic root of 57445031 is about 385.8490980388.

The spelling of 57445031 in words is "fifty-seven million, four hundred forty-five thousand, thirty-one".