725456620 has 48 divisors (see below), whose sum is σ = 1743759360. Its totient is φ = 248347584.

The previous prime is 725456617. The next prime is 725456653. The reversal of 725456620 is 26654527.

It is a self number, because there is not a number n which added to its sum of digits gives 725456620.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 97057 + ... + 104263.

It is an arithmetic number, because the mean of its divisors is an integer number (36328320).

Almost surely, 2^725456620 is an apocalyptic number.

725456620 is a gapful number since it is divisible by the number (70) formed by its first and last digit.

It is an amenable number.

725456620 is an abundant number, since it is smaller than the sum of its proper divisors (1018302740).

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

725456620 is a wasteful number, since it uses less digits than its factorization.

725456620 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 7942 (or 7940 counting only the distinct ones).

The product of its (nonzero) digits is 100800, while the sum is 37.

The square root of 725456620 is about 26934.3019215275. The cubic root of 725456620 is about 898.5394499829.

The spelling of 725456620 in words is "seven hundred twenty-five million, four hundred fifty-six thousand, six hundred twenty".