725223457 has 16 divisors (see below), whose sum is σ = 863452800. Its totient is φ = 596165760.

The previous prime is 725223437. The next prime is 725223463. The reversal of 725223457 is 754322527.

It is a cyclic number.

It is not a de Polignac number, because 725223457 - 2²⁷ = 591005729 is a prime.

It is not an unprimeable number, because it can be changed into a prime (725223437) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 4482 + ... + 38347.

It is an arithmetic number, because the mean of its divisors is an integer number (53965800).

Almost surely, 2^725223457 is an apocalyptic number.

It is an amenable number.

725223457 is a deficient number, since it is larger than the sum of its proper divisors (138229343).

725223457 is a wasteful number, since it uses less digits than its factorization.

725223457 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 42936.

The product of its digits is 117600, while the sum is 37.

The square root of 725223457 is about 26929.9732083045. The cubic root of 725223457 is about 898.4431756286.

The spelling of 725223457 in words is "seven hundred twenty-five million, two hundred twenty-three thousand, four hundred fifty-seven".