256081262 has 4 divisors (see below), whose sum is σ = 384121896. Its totient is φ = 128040630.

The previous prime is 256081253. The next prime is 256081271. The reversal of 256081262 is 262180652.

It is a semiprime because it is the product of two primes.

It is an interprime number because it is at equal distance from previous prime (256081253) and next prime (256081271).

It is a super-2 number, since 2×256081262² = 131155225495025288, which contains 22 as substring.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 64020314 + ... + 64020317.

It is an arithmetic number, because the mean of its divisors is an integer number (96030474).

Almost surely, 2^256081262 is an apocalyptic number.

256081262 is a deficient number, since it is larger than the sum of its proper divisors (128040634).

256081262 is a wasteful number, since it uses less digits than its factorization.

256081262 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 128040633.

The product of its (nonzero) digits is 11520, while the sum is 32.

The square root of 256081262 is about 16002.5392360088. The cubic root of 256081262 is about 635.0275987757.

The spelling of 256081262 in words is "two hundred fifty-six million, eighty-one thousand, two hundred sixty-two".