725267613 has 16 divisors (see below), whose sum is σ = 1123289216. Its totient is φ = 407643840.

The previous prime is 725267603. The next prime is 725267657. The reversal of 725267613 is 316762527.

It is not a de Polignac number, because 725267613 - 2⁴ = 725267597 is a prime.

It is a super-2 number, since 2×725267613² = 1052026220933435538, which contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (725267603) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 281806 + ... + 284367.

It is an arithmetic number, because the mean of its divisors is an integer number (70205576).

Almost surely, 2^725267613 is an apocalyptic number.

It is an amenable number.

725267613 is a deficient number, since it is larger than the sum of its proper divisors (398021603).

725267613 is a wasteful number, since it uses less digits than its factorization.

725267613 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 566244.

The product of its digits is 105840, while the sum is 39.

The square root of 725267613 is about 26930.7930258283. The cubic root of 725267613 is about 898.4614094807.

The spelling of 725267613 in words is "seven hundred twenty-five million, two hundred sixty-seven thousand, six hundred thirteen".