53513512 has 24 divisors (see below), whose sum is σ = 108652590. Its totient is φ = 24697920.

The previous prime is 53513491. The next prime is 53513561. The reversal of 53513512 is 21531535.

It can be written as a sum of positive squares in 3 ways, for example, as 31741956 + 21771556 = 5634^2 + 4666^2 .

It is an unprimeable number.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 18439 + ... + 21142.

Almost surely, 2^53513512 is an apocalyptic number.

53513512 is a gapful number since it is divisible by the number (52) formed by its first and last digit.

It is an amenable number.

53513512 is an abundant number, since it is smaller than the sum of its proper divisors (55139078).

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

53513512 is a wasteful number, since it uses less digits than its factorization.

53513512 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 39613 (or 39596 counting only the distinct ones).

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

The square root of 53513512 is about 7315.2930221557. The cubic root of 53513512 is about 376.8378216430.

The spelling of 53513512 in words is "fifty-three million, five hundred thirteen thousand, five hundred twelve".