725680251215 has 16 divisors (see below), whose sum is σ = 891370275840. Its totient is φ = 566897828640.

The previous prime is 725680251211. The next prime is 725680251281. The reversal of 725680251215 is 512152086527.

It is not a de Polignac number, because 725680251215 - 2² = 725680251211 is a prime.

It is a super-2 number, since 2×725680251215² (a number of 25 digits) contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (725680251211) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 3413921 + ... + 3620250.

It is an arithmetic number, because the mean of its divisors is an integer number (55710642240).

Almost surely, 2^725680251215 is an apocalyptic number.

725680251215 is a deficient number, since it is larger than the sum of its proper divisors (165690024625).

725680251215 is a wasteful number, since it uses less digits than its factorization.

725680251215 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 7034662.

The product of its (nonzero) digits is 336000, while the sum is 44.

The spelling of 725680251215 in words is "seven hundred twenty-five billion, six hundred eighty million, two hundred fifty-one thousand, two hundred fifteen".