725147732 has 6 divisors (see below), whose sum is σ = 1269008538. Its totient is φ = 362573864.

The previous prime is 725147729. The next prime is 725147747. The reversal of 725147732 is 237741527.

It can be written as a sum of positive squares in only one way, i.e., 723287236 + 1860496 = 26894^2 + 1364^2 .

It is a super-3 number, since 3×725147732³ (a number of 28 digits) contains 333 as substring.

It is a congruent number.

It is an unprimeable number.

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 as a sum of consecutive naturals, namely, 90643463 + ... + 90643470.

It is an arithmetic number, because the mean of its divisors is an integer number (211501423).

Almost surely, 2^725147732 is an apocalyptic number.

It is an amenable number.

725147732 is a deficient number, since it is larger than the sum of its proper divisors (543860806).

725147732 is a wasteful number, since it uses less digits than its factorization.

725147732 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 181286937 (or 181286935 counting only the distinct ones).

The product of its digits is 82320, while the sum is 38.

The square root of 725147732 is about 26928.5672103066. The cubic root of 725147732 is about 898.4119038981.

The spelling of 725147732 in words is "seven hundred twenty-five million, one hundred forty-seven thousand, seven hundred thirty-two".