725270725 has 24 divisors (see below), whose sum is σ = 914316480. Its totient is φ = 570635520.

The previous prime is 725270719. The next prime is 725270737. The reversal of 725270725 is 527072527.

It is not a de Polignac number, because 725270725 - 2²⁷ = 591052997 is a prime.

It is an alternating number because its digits alternate between odd and even.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 391752 + ... + 393598.

It is an arithmetic number, because the mean of its divisors is an integer number (38096520).

Almost surely, 2^725270725 is an apocalyptic number.

It is an amenable number.

725270725 is a deficient number, since it is larger than the sum of its proper divisors (189045755).

725270725 is a wasteful number, since it uses less digits than its factorization.

725270725 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2109 (or 2104 counting only the distinct ones).

The product of its (nonzero) digits is 68600, while the sum is 37.

The square root of 725270725 is about 26930.8508034930. The cubic root of 725270725 is about 898.4626945272.

It can be divided in two parts, 7252 and 70725, that added together give a palindrome (77977).

The spelling of 725270725 in words is "seven hundred twenty-five million, two hundred seventy thousand, seven hundred twenty-five".