725844755 has 8 divisors (see below), whose sum is σ = 876562512. Its totient is φ = 576976608.

The previous prime is 725844737. The next prime is 725844793. The reversal of 725844755 is 557448527.

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 725844755 - 2⁸ = 725844499 is a prime.

It is a super-2 number, since 2×725844755² = 1053701216722020050, 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 (13) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 461537 + ... + 463106.

It is an arithmetic number, because the mean of its divisors is an integer number (109570314).

Almost surely, 2^725844755 is an apocalyptic number.

725844755 is a deficient number, since it is larger than the sum of its proper divisors (150717757).

725844755 is a wasteful number, since it uses less digits than its factorization.

725844755 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 924805.

The product of its digits is 1568000, while the sum is 47.

The square root of 725844755 is about 26941.5061754164. The cubic root of 725844755 is about 898.6996674337.

The spelling of 725844755 in words is "seven hundred twenty-five million, eight hundred forty-four thousand, seven hundred fifty-five".