256412253 has 8 divisors (see below), whose sum is σ = 352911616. Its totient is φ = 165427200.

The previous prime is 256412249. The next prime is 256412269. The reversal of 256412253 is 352214652.

256412253 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 256412253 - 2² = 256412249 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 256412253.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (256412153) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 1378468 + ... + 1378653.

It is an arithmetic number, because the mean of its divisors is an integer number (44113952).

Almost surely, 2^256412253 is an apocalyptic number.

It is an amenable number.

256412253 is a deficient number, since it is larger than the sum of its proper divisors (96499363).

256412253 is a wasteful number, since it uses less digits than its factorization.

256412253 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2757155.

The product of its digits is 14400, while the sum is 30.

The square root of 256412253 is about 16012.8777238821. The cubic root of 256412253 is about 635.3010769748.

The spelling of 256412253 in words is "two hundred fifty-six million, four hundred twelve thousand, two hundred fifty-three".