53251538 has 16 divisors (see below), whose sum is σ = 83376216. Its totient is φ = 25484160.

The previous prime is 53251519. The next prime is 53251567. The reversal of 53251538 is 83515235.

53251538 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It can be written as a sum of positive squares in 4 ways, for example, as 37908649 + 15342889 = 6157^2 + 3917^2 .

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 1781 + ... + 10472.

Almost surely, 2^53251538 is an apocalyptic number.

53251538 is a deficient number, since it is larger than the sum of its proper divisors (30124678).

53251538 is a wasteful number, since it uses less digits than its factorization.

53251538 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 12349.

The product of its digits is 18000, while the sum is 32.

The square root of 53251538 is about 7297.3651409259. The cubic root of 53251538 is about 376.2218822047.

The spelling of 53251538 in words is "fifty-three million, two hundred fifty-one thousand, five hundred thirty-eight".