53201538 has 36 divisors (see below), whose sum is σ = 124826130. Its totient is φ = 16368768.

The previous prime is 53201527. The next prime is 53201557. The reversal of 53201538 is 83510235.

It can be written as a sum of positive squares in 3 ways, for example, as 8485569 + 44715969 = 2913^2 + 6687^2 .

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 17 ways as a sum of consecutive naturals, for example, 5703 + ... + 11786.

Almost surely, 2^53201538 is an apocalyptic number.

53201538 is an abundant number, since it is smaller than the sum of its proper divisors (71624592).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

53201538 is a wasteful number, since it uses less digits than its factorization.

53201538 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 17523 (or 17507 counting only the distinct ones).

The product of its (nonzero) digits is 3600, while the sum is 27.

The square root of 53201538 is about 7293.9384422958. The cubic root of 53201538 is about 376.1040954052.

The spelling of 53201538 in words is "fifty-three million, two hundred one thousand, five hundred thirty-eight".