725151738 has 16 divisors (see below), whose sum is σ = 1452512160. Its totient is φ = 241349136.

The previous prime is 725151731. The next prime is 725151761. The reversal of 725151738 is 837151527.

It is a junction number, because it is equal to n+sod(n) for n = 725151696 and 725151705.

It is not an unprimeable number, because it can be changed into a prime (725151731) 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, 87745 + ... + 95652.

It is an arithmetic number, because the mean of its divisors is an integer number (90782010).

Almost surely, 2^725151738 is an apocalyptic number.

725151738 is an abundant number, since it is smaller than the sum of its proper divisors (727360422).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

725151738 is a wasteful number, since it uses less digits than its factorization.

725151738 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 184061.

The product of its digits is 58800, while the sum is 39.

The square root of 725151738 is about 26928.6415921784. The cubic root of 725151738 is about 898.4135582881.

The spelling of 725151738 in words is "seven hundred twenty-five million, one hundred fifty-one thousand, seven hundred thirty-eight".