620725056 has 112 divisors (see below), whose sum is σ = 1887467904. Its totient is φ = 176357376.

The previous prime is 620725043. The next prime is 620725109. The reversal of 620725056 is 650527026.

It is a tau number, because it is divible by the number of its divisors (112).

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, 258196 + ... + 260588.

It is an arithmetic number, because the mean of its divisors is an integer number (16852392).

Almost surely, 2^620725056 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 620725056, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (943733952).

620725056 is an abundant number, since it is smaller than the sum of its proper divisors (1266742848).

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

620725056 is a wasteful number, since it uses less digits than its factorization.

620725056 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2608 (or 2598 counting only the distinct ones).

The product of its (nonzero) digits is 25200, while the sum is 33.

The square root of 620725056 is about 24914.3544166812. The cubic root of 620725056 is about 853.0341648756.

The spelling of 620725056 in words is "six hundred twenty million, seven hundred twenty-five thousand, fifty-six".