725667369 has 16 divisors (see below), whose sum is σ = 1106208768. Its totient is φ = 414505872.

The previous prime is 725667359. The next prime is 725667401. The reversal of 725667369 is 963766527.

It is not a de Polignac number, because 725667369 - 2⁴ = 725667353 is a prime.

It is a super-2 number, since 2×725667369² = 1053186260862764322, which contains 22 as substring.

It is a Curzon number.

It is not an unprimeable number, because it can be changed into a prime (725667359) by changing a digit.

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 15 ways as a sum of consecutive naturals, for example, 67824 + ... + 77790.

It is an arithmetic number, because the mean of its divisors is an integer number (69138048).

Almost surely, 2^725667369 is an apocalyptic number.

It is an amenable number.

725667369 is a deficient number, since it is larger than the sum of its proper divisors (380541399).

725667369 is a wasteful number, since it uses less digits than its factorization.

725667369 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 13444.

The product of its digits is 2857680, while the sum is 51.

The square root of 725667369 is about 26938.2139162937. The cubic root of 725667369 is about 898.6264517190.

The spelling of 725667369 in words is "seven hundred twenty-five million, six hundred sixty-seven thousand, three hundred sixty-nine".