256775542 has 24 divisors (see below), whose sum is σ = 415679040. Its totient is φ = 118829040.

The previous prime is 256775527. The next prime is 256775543. The reversal of 256775542 is 245577652.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (256775543) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 28884 + ... + 36712.

It is an arithmetic number, because the mean of its divisors is an integer number (17319960).

Almost surely, 2^256775542 is an apocalyptic number.

256775542 is a deficient number, since it is larger than the sum of its proper divisors (158903498).

256775542 is a wasteful number, since it uses less digits than its factorization.

256775542 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 7908 (or 7885 counting only the distinct ones).

The product of its digits is 588000, while the sum is 43.

The square root of 256775542 is about 16024.2173599836. The cubic root of 256775542 is about 635.6009703127.

The spelling of 256775542 in words is "two hundred fifty-six million, seven hundred seventy-five thousand, five hundred forty-two".