725556465 has 12 divisors (see below), whose sum is σ = 1257631284. Its totient is φ = 386963424.

The previous prime is 725556451. The next prime is 725556493. The reversal of 725556465 is 564655527.

725556465 is a `hidden beast` number, since 7 + 25 + 5 + 564 + 65 = 666.

It can be written as a sum of positive squares in 2 ways, for example, as 168974001 + 556582464 = 12999^2 + 23592^2 .

It is not a de Polignac number, because 725556465 - 2⁴ = 725556449 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (45), and also a Moran number because the ratio is a prime number: 16123477 = 725556465 / (7 + 2 + 5 + 5 + 5 + 6 + 4 + 6 + 5).

It is a self number, because there is not a number n which added to its sum of digits gives 725556465.

It is an unprimeable number.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 8061694 + ... + 8061783.

It is an arithmetic number, because the mean of its divisors is an integer number (104802607).

Almost surely, 2^725556465 is an apocalyptic number.

It is an amenable number.

725556465 is a deficient number, since it is larger than the sum of its proper divisors (532074819).

725556465 is a wasteful number, since it uses less digits than its factorization.

725556465 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 16123488 (or 16123485 counting only the distinct ones).

The product of its digits is 1260000, while the sum is 45.

The square root of 725556465 is about 26936.1553492699. The cubic root of 725556465 is about 898.5806702541.

The spelling of 725556465 in words is "seven hundred twenty-five million, five hundred fifty-six thousand, four hundred sixty-five".