725020856 has 48 divisors (see below), whose sum is σ = 1590648840. Its totient is φ = 308898240.

The previous prime is 725020843. The next prime is 725020859. The reversal of 725020856 is 658020527.

It is a super-3 number, since 3×725020856³ (a number of 28 digits) contains 333 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (725020859) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 62471 + ... + 73161.

Almost surely, 2^725020856 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 725020856, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (795324420).

725020856 is an abundant number, since it is smaller than the sum of its proper divisors (865627984).

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

725020856 is a wasteful number, since it uses less digits than its factorization.

725020856 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 10884 (or 10873 counting only the distinct ones).

The product of its (nonzero) digits is 33600, while the sum is 35.

The square root of 725020856 is about 26926.2113190846. The cubic root of 725020856 is about 898.3595037446.

The spelling of 725020856 in words is "seven hundred twenty-five million, twenty thousand, eight hundred fifty-six".