52719618 has 64 divisors (see below), whose sum is σ = 130387968. Its totient is φ = 13866240.

The previous prime is 52719613. The next prime is 52719619. The reversal of 52719618 is 81691725.

It is a Curzon number.

It is not an unprimeable number, because it can be changed into a prime (52719613) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 32773 + ... + 34343.

It is an arithmetic number, because the mean of its divisors is an integer number (2037312).

Almost surely, 2^52719618 is an apocalyptic number.

It is a practical number, because each smaller number is the sum of distinct divisors of 52719618, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (65193984).

52719618 is an abundant number, since it is smaller than the sum of its proper divisors (77668350).

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

52719618 is a wasteful number, since it uses less digits than its factorization.

52719618 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1647.

The product of its digits is 30240, while the sum is 39.

The square root of 52719618 is about 7260.8276387751. The cubic root of 52719618 is about 374.9650171811.

The spelling of 52719618 in words is "fifty-two million, seven hundred nineteen thousand, six hundred eighteen".