725226692 has 6 divisors (see below), whose sum is σ = 1269146718. Its totient is φ = 362613344.

The previous prime is 725226673. The next prime is 725226701. The reversal of 725226692 is 296622527.

It can be written as a sum of positive squares in only one way, i.e., 721781956 + 3444736 = 26866^2 + 1856^2 .

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 90653333 + ... + 90653340.

It is an arithmetic number, because the mean of its divisors is an integer number (211524453).

Almost surely, 2^725226692 is an apocalyptic number.

It is an amenable number.

725226692 is a deficient number, since it is larger than the sum of its proper divisors (543920026).

725226692 is a wasteful number, since it uses less digits than its factorization.

725226692 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 181306677 (or 181306675 counting only the distinct ones).

The product of its digits is 181440, while the sum is 41.

The square root of 725226692 is about 26930.0332714239. The cubic root of 725226692 is about 898.4445115200. Note that the first 3 decimals are identical.

The spelling of 725226692 in words is "seven hundred twenty-five million, two hundred twenty-six thousand, six hundred ninety-two".