725278652 has 24 divisors (see below), whose sum is σ = 1470432096. Its totient is φ = 306574848.

The previous prime is 725278649. The next prime is 725278669. The reversal of 725278652 is 256872527.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 175373 + ... + 179460.

It is an arithmetic number, because the mean of its divisors is an integer number (61268004).

Almost surely, 2^725278652 is an apocalyptic number.

It is an amenable number.

725278652 is an abundant number, since it is smaller than the sum of its proper divisors (745153444).

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

725278652 is a wasteful number, since it uses less digits than its factorization.

725278652 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 354917 (or 354915 counting only the distinct ones).

The product of its digits is 470400, while the sum is 44.

The square root of 725278652 is about 26930.9979763098. The cubic root of 725278652 is about 898.4659678281.

The spelling of 725278652 in words is "seven hundred twenty-five million, two hundred seventy-eight thousand, six hundred fifty-two".