725461508 has 6 divisors (see below), whose sum is σ = 1269557646. Its totient is φ = 362730752.

The previous prime is 725461459. The next prime is 725461543. The reversal of 725461508 is 805164527.

It can be written as a sum of positive squares in only one way, i.e., 626100484 + 99361024 = 25022^2 + 9968^2 .

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 90682685 + ... + 90682692.

It is an arithmetic number, because the mean of its divisors is an integer number (211592941).

Almost surely, 2^725461508 is an apocalyptic number.

It is an amenable number.

725461508 is a deficient number, since it is larger than the sum of its proper divisors (544096138).

725461508 is a wasteful number, since it uses less digits than its factorization.

725461508 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 181365381 (or 181365379 counting only the distinct ones).

The product of its (nonzero) digits is 67200, while the sum is 38.

The square root of 725461508 is about 26934.3926606857. The cubic root of 725461508 is about 898.5414680457.

The spelling of 725461508 in words is "seven hundred twenty-five million, four hundred sixty-one thousand, five hundred eight".