725160618 has 96 divisors (see below), whose sum is σ = 1996280832. Its totient is φ = 185068800.

The previous prime is 725160617. The next prime is 725160647. The reversal of 725160618 is 816061527.

725160618 is a `hidden beast` number, since 7 + 25 + 16 + 0 + 618 = 666.

It is a hoax number, since the sum of its digits (36) coincides with the sum of the digits of its distinct prime factors.

It is a Curzon number.

It is not an unprimeable number, because it can be changed into a prime (725160617) by changing a digit.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 43638 + ... + 57918.

It is an arithmetic number, because the mean of its divisors is an integer number (20794592).

Almost surely, 2^725160618 is an apocalyptic number.

725160618 is a gapful number since it is divisible by the number (78) formed by its first and last digit.

It is a practical number, because each smaller number is the sum of distinct divisors of 725160618, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (998140416).

725160618 is an abundant number, since it is smaller than the sum of its proper divisors (1271120214).

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

725160618 is a wasteful number, since it uses less digits than its factorization.

725160618 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 14340 (or 14337 counting only the distinct ones).

The product of its (nonzero) digits is 20160, while the sum is 36.

The square root of 725160618 is about 26928.8064718806. The cubic root of 725160618 is about 898.4172255113.

Subtracting 725160618 from its reverse (816061527), we obtain a palindrome (90900909).

The spelling of 725160618 in words is "seven hundred twenty-five million, one hundred sixty thousand, six hundred eighteen".