57144537 has 6 divisors (see below), whose sum is σ = 82542122. Its totient is φ = 38096352.

The previous prime is 57144517. The next prime is 57144551. The reversal of 57144537 is 73544175.

It is a happy number.

It can be written as a sum of positive squares in only one way, i.e., 54597321 + 2547216 = 7389^2 + 1596^2 .

It is not a de Polignac number, because 57144537 - 2¹¹ = 57142489 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (57144517) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 3174688 + ... + 3174705.

Almost surely, 2^57144537 is an apocalyptic number.

It is an amenable number.

57144537 is a deficient number, since it is larger than the sum of its proper divisors (25397585).

57144537 is a wasteful number, since it uses less digits than its factorization.

57144537 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 6349399 (or 6349396 counting only the distinct ones).

The product of its digits is 58800, while the sum is 36.

The square root of 57144537 is about 7559.4005714739. The cubic root of 57144537 is about 385.1751314322.

The spelling of 57144537 in words is "fifty-seven million, one hundred forty-four thousand, five hundred thirty-seven".