57044137 has 6 divisors (see below), whose sum is σ = 60204858. Its totient is φ = 54041472.

The previous prime is 57044107. The next prime is 57044159. The reversal of 57044137 is 73144075.

It can be written as a sum of positive squares in only one way, i.e., 51036736 + 6007401 = 7144^2 + 2451^2 .

It is a de Polignac number, because none of the positive numbers 2^k-57044137 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 57044099 and 57044108.

It is not an unprimeable number, because it can be changed into a prime (57044107) by changing a digit.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 78648 + ... + 79369.

It is an arithmetic number, because the mean of its divisors is an integer number (10034143).

Almost surely, 2^57044137 is an apocalyptic number.

It is an amenable number.

57044137 is a deficient number, since it is larger than the sum of its proper divisors (3160721).

57044137 is a wasteful number, since it uses less digits than its factorization.

57044137 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 158055 (or 158036 counting only the distinct ones).

The product of its (nonzero) digits is 11760, while the sum is 31.

The square root of 57044137 is about 7552.7569138693. The cubic root of 57044137 is about 384.9494215898.

The spelling of 57044137 in words is "fifty-seven million, forty-four thousand, one hundred thirty-seven".