256025616 has 160 divisors (see below), whose sum is σ = 840803328. Its totient is φ = 65195520.

The previous prime is 256025611. The next prime is 256025617. The reversal of 256025616 is 616520652.

It is a happy number.

256025616 is digitally balanced in base 3, because in such base it contains all the possibile digits an equal number of times.

It is a hoax number, since the sum of its digits (33) coincides with the sum of the digits of its distinct prime factors.

It is a Harshad number since it is a multiple of its sum of digits (33).

It is not an unprimeable number, because it can be changed into a prime (256025611) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 195235 + ... + 196541.

Almost surely, 2^256025616 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 256025616, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (420401664).

256025616 is an abundant number, since it is smaller than the sum of its proper divisors (584777712).

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

256025616 is a wasteful number, since it uses less digits than its factorization.

256025616 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1389 (or 1383 counting only the distinct ones).

The product of its (nonzero) digits is 21600, while the sum is 33.

The square root of 256025616 is about 16000.8004799760. The cubic root of 256025616 is about 634.9815986566.

The spelling of 256025616 in words is "two hundred fifty-six million, twenty-five thousand, six hundred sixteen".