256005762 has 16 divisors (see below), whose sum is σ = 513824160. Its totient is φ = 85033152.

The previous prime is 256005749. The next prime is 256005767. The reversal of 256005762 is 267500652.

It is not an unprimeable number, because it can be changed into a prime (256005767) 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, 73687 + ... + 77082.

It is an arithmetic number, because the mean of its divisors is an integer number (32114010).

Almost surely, 2^256005762 is an apocalyptic number.

256005762 is an abundant number, since it is smaller than the sum of its proper divisors (257818398).

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

256005762 is a wasteful number, since it uses less digits than its factorization.

256005762 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 151057.

The product of its (nonzero) digits is 25200, while the sum is 33.

The square root of 256005762 is about 16000.1800614868. The cubic root of 256005762 is about 634.9651846082.

The spelling of 256005762 in words is "two hundred fifty-six million, five thousand, seven hundred sixty-two".