725554512 has 30 divisors (see below), whose sum is σ = 2030545322. Its totient is φ = 241851456.

The previous prime is 725554507. The next prime is 725554549. The reversal of 725554512 is 215455527.

725554512 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It can be written as a sum of positive squares in only one way, i.e., 721244736 + 4309776 = 26856^2 + 2076^2 .

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 Harshad number since it is a multiple of its sum of digits (36).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 2519143 + ... + 2519430.

Almost surely, 2^725554512 is an apocalyptic number.

725554512 is a gapful number since it is divisible by the number (72) formed by its first and last digit.

It is an amenable number.

725554512 is an abundant number, since it is smaller than the sum of its proper divisors (1304990810).

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

725554512 is a wasteful number, since it uses less digits than its factorization.

725554512 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5038587 (or 5038578 counting only the distinct ones).

The product of its digits is 70000, while the sum is 36.

The square root of 725554512 is about 26936.1190968558. The cubic root of 725554512 is about 898.5798640088.

The spelling of 725554512 in words is "seven hundred twenty-five million, five hundred fifty-four thousand, five hundred twelve".