52015618 has 16 divisors (see below), whose sum is σ = 81506880. Its totient is φ = 24864336.

The previous prime is 52015591. The next prime is 52015637. The reversal of 52015618 is 81651025.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 1621 + ... + 10327.

It is an arithmetic number, because the mean of its divisors is an integer number (5094180).

Almost surely, 2^52015618 is an apocalyptic number.

52015618 is a gapful number since it is divisible by the number (58) formed by its first and last digit.

52015618 is a deficient number, since it is larger than the sum of its proper divisors (29491262).

52015618 is a wasteful number, since it uses less digits than its factorization.

52015618 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 8841.

The product of its (nonzero) digits is 2400, while the sum is 28.

The square root of 52015618 is about 7212.1853830860. The cubic root of 52015618 is about 373.2884801202.

The spelling of 52015618 in words is "fifty-two million, fifteen thousand, six hundred eighteen".