725554630 has 16 divisors (see below), whose sum is σ = 1330640784. Its totient is φ = 284745760.

The previous prime is 725554607. The next prime is 725554637. The reversal of 725554630 is 36455527.

It is a super-2 number, since 2×725554630² = 1052859042228873800, which contains 22 as substring.

It is a self number, because there is not a number n which added to its sum of digits gives 725554630.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (725554637) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 683956 + ... + 685015.

It is an arithmetic number, because the mean of its divisors is an integer number (83165049).

Almost surely, 2^725554630 is an apocalyptic number.

725554630 is a deficient number, since it is larger than the sum of its proper divisors (605086154).

725554630 is a wasteful number, since it uses less digits than its factorization.

725554630 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1369031.

The product of its (nonzero) digits is 126000, while the sum is 37.

The square root of 725554630 is about 26936.1212872232. The cubic root of 725554630 is about 898.5799127220.

The spelling of 725554630 in words is "seven hundred twenty-five million, five hundred fifty-four thousand, six hundred thirty".