724942025 has 12 divisors (see below), whose sum is σ = 899299212. Its totient is φ = 579714240.

The previous prime is 724942007. The next prime is 724942051. The reversal of 724942025 is 520249427.

It can be written as a sum of positive squares in 6 ways, for example, as 66455104 + 658486921 = 8152^2 + 25661^2 .

It is not a de Polignac number, because 724942025 - 2⁶ = 724941961 is a prime.

It is a super-2 number, since 2×724942025² = 1051081879222201250, which contains 22 as substring.

It is a Duffinian number.

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 in 11 ways as a sum of consecutive naturals, for example, 80027 + ... + 88623.

It is an arithmetic number, because the mean of its divisors is an integer number (74941601).

Almost surely, 2^724942025 is an apocalyptic number.

It is an amenable number.

724942025 is a deficient number, since it is larger than the sum of its proper divisors (174357187).

724942025 is a wasteful number, since it uses less digits than its factorization.

724942025 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 11980 (or 11975 counting only the distinct ones).

The product of its (nonzero) digits is 40320, while the sum is 35.

The square root of 724942025 is about 26924.7474454265. The cubic root of 724942025 is about 898.3269432354.

The spelling of 724942025 in words is "seven hundred twenty-four million, nine hundred forty-two thousand, twenty-five".