57455137 has 4 divisors (see below), whose sum is σ = 58047556. Its totient is φ = 56862720.

The previous prime is 57455131. The next prime is 57455141. The reversal of 57455137 is 73155475.

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

It can be written as a sum of positive squares in 2 ways, for example, as 32764176 + 24690961 = 5724^2 + 4969^2 .

It is a cyclic number.

It is not a de Polignac number, because 57455137 - 2¹⁵ = 57422369 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 57455096 and 57455105.

It is not an unprimeable number, because it can be changed into a prime (57455131) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 296064 + ... + 296257.

It is an arithmetic number, because the mean of its divisors is an integer number (14511889).

Almost surely, 2^57455137 is an apocalyptic number.

It is an amenable number.

57455137 is a deficient number, since it is larger than the sum of its proper divisors (592419).

57455137 is an equidigital number, since it uses as much as digits as its factorization.

57455137 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 592418.

The product of its digits is 73500, while the sum is 37.

The square root of 57455137 is about 7579.9166881965. The cubic root of 57455137 is about 385.8717235080.

The spelling of 57455137 in words is "fifty-seven million, four hundred fifty-five thousand, one hundred thirty-seven".