53715520 has 28 divisors (see below), whose sum is σ = 127910844. Its totient is φ = 21486080.

The previous prime is 53715499. The next prime is 53715521. The reversal of 53715520 is 2551735.

It can be written as a sum of positive squares in 2 ways, for example, as 36675136 + 17040384 = 6056^2 + 4128^2 .

It is not an unprimeable number, because it can be changed into a prime (53715521) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 83611 + ... + 84250.

Almost surely, 2^53715520 is an apocalyptic number.

It is an amenable number.

53715520 is an abundant number, since it is smaller than the sum of its proper divisors (74195324).

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

53715520 is a wasteful number, since it uses less digits than its factorization.

53715520 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 167878 (or 167868 counting only the distinct ones).

The product of its (nonzero) digits is 5250, while the sum is 28.

The square root of 53715520 is about 7329.0872555865. The cubic root of 53715520 is about 377.3114009014.

The spelling of 53715520 in words is "fifty-three million, seven hundred fifteen thousand, five hundred twenty".