725225465 has 16 divisors (see below), whose sum is σ = 877986000. Its totient is φ = 575054592.

The previous prime is 725225461. The next prime is 725225467. The reversal of 725225465 is 564522527.

It is a happy number.

It can be written as a sum of positive squares in 8 ways, for example, as 17505856 + 707719609 = 4184^2 + 26603^2 .

It is a cyclic number.

It is not a de Polignac number, because 725225465 - 2² = 725225461 is a prime.

It is not an unprimeable number, because it can be changed into a prime (725225461) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 527519 + ... + 528891.

It is an arithmetic number, because the mean of its divisors is an integer number (54874125).

Almost surely, 2^725225465 is an apocalyptic number.

It is an amenable number.

725225465 is a deficient number, since it is larger than the sum of its proper divisors (152760535).

725225465 is a wasteful number, since it uses less digits than its factorization.

725225465 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2236.

The product of its digits is 168000, while the sum is 38.

The square root of 725225465 is about 26930.0104901576. The cubic root of 725225465 is about 898.4440048315. Note that the first 3 decimals are identical.

The spelling of 725225465 in words is "seven hundred twenty-five million, two hundred twenty-five thousand, four hundred sixty-five".