52515616 has 24 divisors (see below), whose sum is σ = 104811084. Its totient is φ = 25896960.

The previous prime is 52515613. The next prime is 52515649. The reversal of 52515616 is 61651525.

It can be written as a sum of positive squares in 2 ways, for example, as 49056016 + 3459600 = 7004^2 + 1860^2 .

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (52515613) 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, 8905 + ... + 13576.

Almost surely, 2^52515616 is an apocalyptic number.

It is an amenable number.

52515616 is a deficient number, since it is larger than the sum of its proper divisors (52295468).

52515616 is a wasteful number, since it uses less digits than its factorization.

52515616 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 22564 (or 22556 counting only the distinct ones).

The product of its digits is 9000, while the sum is 31.

The square root of 52515616 is about 7246.7658993512. The cubic root of 52515616 is about 374.4807414682.

The spelling of 52515616 in words is "fifty-two million, five hundred fifteen thousand, six hundred sixteen".