725218054 has 16 divisors (see below), whose sum is σ = 1190039040. Its totient is φ = 328722760.

The previous prime is 725218031. The next prime is 725218099. The reversal of 725218054 is 450812527.

It is a happy number.

It is a super-4 number, since 4×725218054⁴ (a number of 37 digits) contains 4444 as substring.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 38014 + ... + 53809.

It is an arithmetic number, because the mean of its divisors is an integer number (74377440).

Almost surely, 2^725218054 is an apocalyptic number.

725218054 is a deficient number, since it is larger than the sum of its proper divisors (464820986).

725218054 is a wasteful number, since it uses less digits than its factorization.

725218054 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 92195.

The product of its (nonzero) digits is 22400, while the sum is 34.

The square root of 725218054 is about 26929.8728923848. The cubic root of 725218054 is about 898.4409444540.

The spelling of 725218054 in words is "seven hundred twenty-five million, two hundred eighteen thousand, fifty-four".