725556146 has 16 divisors (see below), whose sum is σ = 1244169600. Its totient is φ = 310862880.

The previous prime is 725556119. The next prime is 725556239. The reversal of 725556146 is 641655527.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 71531 + ... + 81041.

It is an arithmetic number, because the mean of its divisors is an integer number (77760600).

Almost surely, 2^725556146 is an apocalyptic number.

725556146 is a deficient number, since it is larger than the sum of its proper divisors (518613454).

725556146 is a wasteful number, since it uses less digits than its factorization.

725556146 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 14969.

The product of its digits is 252000, while the sum is 41.

The square root of 725556146 is about 26936.1494278600. The cubic root of 725556146 is about 898.5805385634.

The spelling of 725556146 in words is "seven hundred twenty-five million, five hundred fifty-six thousand, one hundred forty-six".