725477625 has 24 divisors (see below), whose sum is σ = 1307796360. Its totient is φ = 386920800.

The previous prime is 725477603. The next prime is 725477633. The reversal of 725477625 is 526774527.

It can be written as a sum of positive squares in 4 ways, for example, as 24710841 + 700766784 = 4971^2 + 26472^2 .

It is not a de Polignac number, because 725477625 - 2⁶ = 725477561 is a prime.

It is a hoax number, since the sum of its digits (45) coincides with the sum of the digits of its distinct prime factors.

It is a Harshad number since it is a multiple of its sum of digits (45).

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 321310 + ... + 323559.

It is an arithmetic number, because the mean of its divisors is an integer number (54491515).

Almost surely, 2^725477625 is an apocalyptic number.

725477625 is a gapful number since it is divisible by the number (75) formed by its first and last digit.

It is an amenable number.

725477625 is a deficient number, since it is larger than the sum of its proper divisors (582318735).

725477625 is a wasteful number, since it uses less digits than its factorization.

725477625 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 644890 (or 644877 counting only the distinct ones).

The product of its digits is 823200, while the sum is 45.

The square root of 725477625 is about 26934.6918489891. The cubic root of 725477625 is about 898.5481220562.

The spelling of 725477625 in words is "seven hundred twenty-five million, four hundred seventy-seven thousand, six hundred twenty-five".