52651215 has 20 divisors (see below), whose sum is σ = 94382904. Its totient is φ = 28080432.

The previous prime is 52651103. The next prime is 52651217. The reversal of 52651215 is 51215625.

52651215 is a `hidden beast` number, since 5 + 2 + 651 + 2 + 1 + 5 = 666.

It is not a de Polignac number, because 52651215 - 2⁸ = 52650959 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (27).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (52651217) by changing a digit.

It is a polite number, since it can be written in 19 ways as a sum of consecutive naturals, for example, 64597 + ... + 65406.

Almost surely, 2^52651215 is an apocalyptic number.

52651215 is a deficient number, since it is larger than the sum of its proper divisors (41731689).

52651215 is a wasteful number, since it uses less digits than its factorization.

52651215 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 130020 (or 130011 counting only the distinct ones).

The product of its digits is 3000, while the sum is 27.

The square root of 52651215 is about 7256.1156964315. The cubic root of 52651215 is about 374.8027762923.

The spelling of 52651215 in words is "fifty-two million, six hundred fifty-one thousand, two hundred fifteen".