725554629 has 12 divisors (see below), whose sum is σ = 1048257132. Its totient is φ = 483595200.

The previous prime is 725554607. The next prime is 725554637. The reversal of 725554629 is 926455527.

725554629 is a `hidden beast` number, since 72 + 5 + 554 + 6 + 29 = 666.

It can be written as a sum of positive squares in 2 ways, for example, as 452412900 + 273141729 = 21270^2 + 16527^2 .

It is not a de Polignac number, because 725554629 - 2⁹ = 725554117 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (725554699) 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 11 ways as a sum of consecutive naturals, for example, 71959 + ... + 81419.

It is an arithmetic number, because the mean of its divisors is an integer number (87354761).

Almost surely, 2^725554629 is an apocalyptic number.

It is an amenable number.

725554629 is a deficient number, since it is larger than the sum of its proper divisors (322702503).

725554629 is a wasteful number, since it uses less digits than its factorization.

725554629 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 17988 (or 17985 counting only the distinct ones).

The product of its digits is 756000, while the sum is 45.

The square root of 725554629 is about 26936.1212686608. The cubic root of 725554629 is about 898.5799123092.

The spelling of 725554629 in words is "seven hundred twenty-five million, five hundred fifty-four thousand, six hundred twenty-nine".