725451996 has 48 divisors (see below), whose sum is σ = 1789401600. Its totient is φ = 228114432.

The previous prime is 725451989. The next prime is 725452001. The reversal of 725451996 is 699154527.

It is a congruent number.

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, 47836 + ... + 61148.

It is an arithmetic number, because the mean of its divisors is an integer number (37279200).

Almost surely, 2^725451996 is an apocalyptic number.

725451996 is a gapful number since it is divisible by the number (76) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 725451996, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (894700800).

725451996 is an abundant number, since it is smaller than the sum of its proper divisors (1063949604).

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

725451996 is a wasteful number, since it uses less digits than its factorization.

725451996 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 13578 (or 13576 counting only the distinct ones).

The product of its digits is 680400, while the sum is 48.

The square root of 725451996 is about 26934.2160828935. The cubic root of 725451996 is about 898.5375409070.

The spelling of 725451996 in words is "seven hundred twenty-five million, four hundred fifty-one thousand, nine hundred ninety-six".