725953720 has 64 divisors (see below), whose sum is σ = 1762197120. Its totient is φ = 268130304.

The previous prime is 725953699. The next prime is 725953721. The reversal of 725953720 is 27359527.

It is a Harshad number since it is a multiple of its sum of digits (40).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (725953721) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 25969 + ... + 46111.

It is an arithmetic number, because the mean of its divisors is an integer number (27534330).

Almost surely, 2^725953720 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 725953720, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (881098560).

725953720 is an abundant number, since it is smaller than the sum of its proper divisors (1036243400).

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

725953720 is a wasteful number, since it uses less digits than its factorization.

725953720 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 20224 (or 20220 counting only the distinct ones).

The product of its (nonzero) digits is 132300, while the sum is 40.

The square root of 725953720 is about 26943.5283509788. The cubic root of 725953720 is about 898.7446366040.

The spelling of 725953720 in words is "seven hundred twenty-five million, nine hundred fifty-three thousand, seven hundred twenty".