725631752 has 8 divisors (see below), whose sum is σ = 1360559550. Its totient is φ = 362815872.

The previous prime is 725631749. The next prime is 725631763. The reversal of 725631752 is 257136527.

It can be written as a sum of positive squares in only one way, i.e., 432057796 + 293573956 = 20786^2 + 17134^2 .

It is a tau number, because it is divible by the number of its divisors (8).

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 45351977 + ... + 45351992.

Almost surely, 2^725631752 is an apocalyptic number.

It is an amenable number.

725631752 is a deficient number, since it is larger than the sum of its proper divisors (634927798).

725631752 is a wasteful number, since it uses less digits than its factorization.

725631752 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 90703975 (or 90703971 counting only the distinct ones).

The product of its digits is 88200, while the sum is 38.

The square root of 725631752 is about 26937.5528212939. The cubic root of 725631752 is about 898.6117494356.

The spelling of 725631752 in words is "seven hundred twenty-five million, six hundred thirty-one thousand, seven hundred fifty-two".