725761031 has 8 divisors (see below), whose sum is σ = 784607280. Its totient is φ = 668979648.

The previous prime is 725761027. The next prime is 725761033. The reversal of 725761031 is 130167527.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 725761031 - 2² = 725761027 is a prime.

It is a super-2 number, since 2×725761031² = 1053458148236365922, which contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (725761033) by changing a digit.

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 in 7 ways as a sum of consecutive naturals, for example, 515486 + ... + 516891.

It is an arithmetic number, because the mean of its divisors is an integer number (98075910).

Almost surely, 2^725761031 is an apocalyptic number.

725761031 is a deficient number, since it is larger than the sum of its proper divisors (58846249).

725761031 is a wasteful number, since it uses less digits than its factorization.

725761031 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1032433.

The product of its (nonzero) digits is 8820, while the sum is 32.

The square root of 725761031 is about 26939.9523199281. The cubic root of 725761031 is about 898.6651120077.

The spelling of 725761031 in words is "seven hundred twenty-five million, seven hundred sixty-one thousand, thirty-one".