52649718 has 32 divisors (see below), whose sum is σ = 118582272. Its totient is φ = 15439200.

The previous prime is 52649693. The next prime is 52649747. The reversal of 52649718 is 81794625.

It is a self number, because there is not a number n which added to its sum of digits gives 52649718.

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, 10821 + ... + 14912.

It is an arithmetic number, because the mean of its divisors is an integer number (3705696).

Almost surely, 2^52649718 is an apocalyptic number.

52649718 is an abundant number, since it is smaller than the sum of its proper divisors (65932554).

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

52649718 is a wasteful number, since it uses less digits than its factorization.

52649718 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 25780.

The product of its digits is 120960, while the sum is 42.

The square root of 52649718 is about 7256.0125413343. The cubic root of 52649718 is about 374.7992240788.

The spelling of 52649718 in words is "fifty-two million, six hundred forty-nine thousand, seven hundred eighteen".