57756137 has 2 divisors, whose sum is σ = 57756138. Its totient is φ = 57756136.

The previous prime is 57756119. The next prime is 57756163. The reversal of 57756137 is 73165775.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 57592921 + 163216 = 7589^2 + 404^2 .

It is a cyclic number.

It is not a de Polignac number, because 57756137 - 2⁶ = 57756073 is a prime.

It is a super-2 number, since 2×57756137² = 6671542722325538, which contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 57756094 and 57756103.

It is not a weakly prime, because it can be changed into another prime (57756037) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 28878068 + 28878069.

It is an arithmetic number, because the mean of its divisors is an integer number (28878069).

Almost surely, 2^57756137 is an apocalyptic number.

It is an amenable number.

57756137 is a deficient number, since it is larger than the sum of its proper divisors (1).

57756137 is an equidigital number, since it uses as much as digits as its factorization.

57756137 is an evil number, because the sum of its binary digits is even.

The product of its digits is 154350, while the sum is 41.

The square root of 57756137 is about 7599.7458510137. The cubic root of 57756137 is about 386.5443941404.

The spelling of 57756137 in words is "fifty-seven million, seven hundred fifty-six thousand, one hundred thirty-seven".