725415716 has 6 divisors (see below), whose sum is σ = 1269477510. Its totient is φ = 362707856.

The previous prime is 725415703. The next prime is 725415727. The reversal of 725415716 is 617514527.

It can be written as a sum of positive squares in only one way, i.e., 724686400 + 729316 = 26920^2 + 854^2 .

It is a super-2 number, since 2×725415716² = 1052455922039585312, which contains 22 as substring.

It is a self number, because there is not a number n which added to its sum of digits gives 725415716.

It is an unprimeable number.

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 as a sum of consecutive naturals, namely, 90676961 + ... + 90676968.

It is an arithmetic number, because the mean of its divisors is an integer number (211579585).

Almost surely, 2^725415716 is an apocalyptic number.

It is an amenable number.

725415716 is a deficient number, since it is larger than the sum of its proper divisors (544061794).

725415716 is a wasteful number, since it uses less digits than its factorization.

725415716 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 181353933 (or 181353931 counting only the distinct ones).

The product of its digits is 58800, while the sum is 38.

The square root of 725415716 is about 26933.5425816954. The cubic root of 725415716 is about 898.5225619764.

The spelling of 725415716 in words is "seven hundred twenty-five million, four hundred fifteen thousand, seven hundred sixteen".