725091251090 has 16 divisors (see below), whose sum is σ = 1305208068120. Its totient is φ = 290026763520.

The previous prime is 725091251083. The next prime is 725091251099. The reversal of 725091251090 is 90152190527.

725091251090 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It can be written as a sum of positive squares in 4 ways, for example, as 630424884049 + 94666367041 = 793993^2 + 307679^2 .

It is a super-2 number, since 2×725091251090² (a number of 25 digits) contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (725091251099) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 900425 + ... + 1503644.

Almost surely, 2^725091251090 is an apocalyptic number.

725091251090 is a deficient number, since it is larger than the sum of its proper divisors (580116817030).

725091251090 is a wasteful number, since it uses less digits than its factorization.

725091251090 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2434237.

The product of its (nonzero) digits is 56700, while the sum is 41.

The spelling of 725091251090 in words is "seven hundred twenty-five billion, ninety-one million, two hundred fifty-one thousand, ninety".