52507815 has 16 divisors (see below), whose sum is σ = 88954848. Its totient is φ = 26356736.

The previous prime is 52507801. The next prime is 52507841. The reversal of 52507815 is 51870525.

It is a happy number.

It is a cyclic number.

It is not a de Polignac number, because 52507815 - 2⁵ = 52507783 is a prime.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 102702 + ... + 103211.

It is an arithmetic number, because the mean of its divisors is an integer number (5559678).

Almost surely, 2^52507815 is an apocalyptic number.

52507815 is a deficient number, since it is larger than the sum of its proper divisors (36447033).

52507815 is a wasteful number, since it uses less digits than its factorization.

52507815 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 205938.

The product of its (nonzero) digits is 14000, while the sum is 33.

The square root of 52507815 is about 7246.2276392617. The cubic root of 52507815 is about 374.4621979749.

The spelling of 52507815 in words is "fifty-two million, five hundred seven thousand, eight hundred fifteen".