53131525 has 12 divisors (see below), whose sum is σ = 66049344. Its totient is φ = 42398000.

The previous prime is 53131483. The next prime is 53131553. The reversal of 53131525 is 52513135.

It is not a de Polignac number, because 53131525 - 2²³ = 44742917 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (25).

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 53131525.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 8310 + ... + 13240.

It is an arithmetic number, because the mean of its divisors is an integer number (5504112).

Almost surely, 2^53131525 is an apocalyptic number.

It is an amenable number.

53131525 is a deficient number, since it is larger than the sum of its proper divisors (12917819).

53131525 is a wasteful number, since it uses less digits than its factorization.

53131525 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5372 (or 5367 counting only the distinct ones).

The product of its digits is 2250, while the sum is 25.

The square root of 53131525 is about 7289.1374661204. The cubic root of 53131525 is about 375.9390391776.

It can be divided in two parts, 5313 and 1525, that multiplied together give a triangular number (8102325 = T₄₀₂₅).

The spelling of 53131525 in words is "fifty-three million, one hundred thirty-one thousand, five hundred twenty-five".