256425024 has 112 divisors (see below), whose sum is σ = 700503552. Its totient is φ = 82747392.

The previous prime is 256425023. The next prime is 256425031. The reversal of 256425024 is 420524652.

It is a happy number.

256425024 is digitally balanced in base 3, because in such base it contains all the possibile digits an equal number of times.

It is a junction number, because it is equal to n+sod(n) for n = 256424982 and 256425000.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (256425023) 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, 1149777 + ... + 1149999.

It is an arithmetic number, because the mean of its divisors is an integer number (6254496).

Almost surely, 2^256425024 is an apocalyptic number.

256425024 is a gapful number since it is divisible by the number (24) 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 256425024, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (350251776).

256425024 is an abundant number, since it is smaller than the sum of its proper divisors (444078528).

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

256425024 is a wasteful number, since it uses less digits than its factorization.

256425024 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 404 (or 394 counting only the distinct ones).

The product of its (nonzero) digits is 19200, while the sum is 30.

The square root of 256425024 is about 16013.2764917115. The cubic root of 256425024 is about 635.3116241767.

Adding to 256425024 its reverse (420524652), we get a palindrome (676949676).

The spelling of 256425024 in words is "two hundred fifty-six million, four hundred twenty-five thousand, twenty-four".