256105048 has 32 divisors (see below), whose sum is σ = 485814960. Its totient is φ = 126564480.

The previous prime is 256105039. The next prime is 256105093. The reversal of 256105048 is 840501652.

It is a super-2 number, since 2×256105048² = 131179591222164608, 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 in 7 ways as a sum of consecutive naturals, for example, 291586 + ... + 292462.

Almost surely, 2^256105048 is an apocalyptic number.

It is an amenable number.

256105048 is a deficient number, since it is larger than the sum of its proper divisors (229709912).

256105048 is a wasteful number, since it uses less digits than its factorization.

256105048 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1267 (or 1263 counting only the distinct ones).

The product of its (nonzero) digits is 9600, while the sum is 31.

The square root of 256105048 is about 16003.2824133051. The cubic root of 256105048 is about 635.0472595905.

The spelling of 256105048 in words is "two hundred fifty-six million, one hundred five thousand, forty-eight".