725666710 has 32 divisors (see below), whose sum is σ = 1382689440. Its totient is φ = 273735168.

The previous prime is 725666701. The next prime is 725666723. The reversal of 725666710 is 17666527.

It is a happy number.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 16627 + ... + 41566.

It is an arithmetic number, because the mean of its divisors is an integer number (43209045).

Almost surely, 2^725666710 is an apocalyptic number.

725666710 is a deficient number, since it is larger than the sum of its proper divisors (657022730).

725666710 is a wasteful number, since it uses less digits than its factorization.

725666710 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 58272.

The product of its (nonzero) digits is 105840, while the sum is 40.

The square root of 725666710 is about 26938.2016845965. The cubic root of 725666710 is about 898.6261796958.

The spelling of 725666710 in words is "seven hundred twenty-five million, six hundred sixty-six thousand, seven hundred ten".