52618518 has 16 divisors (see below), whose sum is σ = 116930160. Its totient is φ = 17539488.

The previous prime is 52618493. The next prime is 52618529. The reversal of 52618518 is 81581625.

It is a congruent number.

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, 487155 + ... + 487262.

It is an arithmetic number, because the mean of its divisors is an integer number (7308135).

Almost surely, 2^52618518 is an apocalyptic number.

52618518 is an abundant number, since it is smaller than the sum of its proper divisors (64311642).

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

52618518 is a wasteful number, since it uses less digits than its factorization.

52618518 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 974428 (or 974422 counting only the distinct ones).

The product of its digits is 19200, while the sum is 36.

The square root of 52618518 is about 7253.8622815711. The cubic root of 52618518 is about 374.7251746386.

It can be divided in two parts, 526 and 18518, that added together give a square (19044 = 138²).

The spelling of 52618518 in words is "fifty-two million, six hundred eighteen thousand, five hundred eighteen".