53387144 has 16 divisors (see below), whose sum is σ = 103553100. Its totient is φ = 25772992.

The previous prime is 53387143. The next prime is 53387161. The reversal of 53387144 is 44178335.

It can be written as a sum of positive squares in 2 ways, for example, as 47087044 + 6300100 = 6862^2 + 2510^2 .

It is not an unprimeable number, because it can be changed into a prime (53387143) 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, 114827 + ... + 115290.

Almost surely, 2^53387144 is an apocalyptic number.

It is an amenable number.

53387144 is a deficient number, since it is larger than the sum of its proper divisors (50165956).

53387144 is a wasteful number, since it uses less digits than its factorization.

53387144 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 230152 (or 230148 counting only the distinct ones).

The product of its digits is 40320, while the sum is 35.

The square root of 53387144 is about 7306.6506690822. The cubic root of 53387144 is about 376.5409634406.

The spelling of 53387144 in words is "fifty-three million, three hundred eighty-seven thousand, one hundred forty-four".