256268937 has 4 divisors (see below), whose sum is σ = 341691920. Its totient is φ = 170845956.

The previous prime is 256268933. The next prime is 256268951. The reversal of 256268937 is 739862652.

256268937 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is not a de Polignac number, because 256268937 - 2² = 256268933 is a prime.

It is a super-2 number, since 2×256268937² = 131347536142219938, which contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (256268933) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 42711487 + ... + 42711492.

It is an arithmetic number, because the mean of its divisors is an integer number (85422980).

Almost surely, 2^256268937 is an apocalyptic number.

It is an amenable number.

256268937 is a deficient number, since it is larger than the sum of its proper divisors (85422983).

256268937 is an equidigital number, since it uses as much as digits as its factorization.

256268937 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 85422982.

The product of its digits is 1088640, while the sum is 48.

The square root of 256268937 is about 16008.4020751604. The cubic root of 256268937 is about 635.1826923857.

The spelling of 256268937 in words is "two hundred fifty-six million, two hundred sixty-eight thousand, nine hundred thirty-seven".