256562262 has 64 divisors (see below), whose sum is σ = 642078720. Its totient is φ = 75232800.

The previous prime is 256562261. The next prime is 256562269. The reversal of 256562262 is 262265652.

256562262 is a `hidden beast` number, since 25 + 6 + 5 + 622 + 6 + 2 = 666.

It is a Smith number, since the sum of its digits (36) coincides with the sum of the digits of its prime factors.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (256562261) 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, 11448 + ... + 25380.

It is an arithmetic number, because the mean of its divisors is an integer number (10032480).

Almost surely, 2^256562262 is an apocalyptic number.

256562262 is a gapful number since it is divisible by the number (22) formed by its first and last digit.

It is a practical number, because each smaller number is the sum of distinct divisors of 256562262, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (321039360).

256562262 is an abundant number, since it is smaller than the sum of its proper divisors (385516458).

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

256562262 is a wasteful number, since it uses less digits than its factorization.

256562262 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 13986 (or 13980 counting only the distinct ones).

The product of its digits is 86400, while the sum is 36.

The square root of 256562262 is about 16017.5610502973. The cubic root of 256562262 is about 635.4249430012.

The spelling of 256562262 in words is "two hundred fifty-six million, five hundred sixty-two thousand, two hundred sixty-two".