53672521 has 16 divisors (see below), whose sum is σ = 63037440. Its totient is φ = 44750160.

The previous prime is 53672513. The next prime is 53672537. The reversal of 53672521 is 12527635.

It is not a de Polignac number, because 53672521 - 2³ = 53672513 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (53675521) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 38580 + ... + 39946.

It is an arithmetic number, because the mean of its divisors is an integer number (3939840).

Almost surely, 2^53672521 is an apocalyptic number.

It is an amenable number.

53672521 is a deficient number, since it is larger than the sum of its proper divisors (9364919).

53672521 is a wasteful number, since it uses less digits than its factorization.

53672521 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1524.

The product of its digits is 12600, while the sum is 31.

The square root of 53672521 is about 7326.1532198010. The cubic root of 53672521 is about 377.2106954074.

The spelling of 53672521 in words is "fifty-three million, six hundred seventy-two thousand, five hundred twenty-one".