256552554 has 16 divisors (see below), whose sum is σ = 540110880. Its totient is φ = 81016560.

The previous prime is 256552553. The next prime is 256552567. The reversal of 256552554 is 455255652.

It is not an unprimeable number, because it can be changed into a prime (256552553) 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, 1125117 + ... + 1125344.

It is an arithmetic number, because the mean of its divisors is an integer number (33756930).

Almost surely, 2^256552554 is an apocalyptic number.

256552554 is an abundant number, since it is smaller than the sum of its proper divisors (283558326).

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

256552554 is a wasteful number, since it uses less digits than its factorization.

256552554 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2250485.

The product of its digits is 300000, while the sum is 39.

The square root of 256552554 is about 16017.2580050394. The cubic root of 256552554 is about 635.4169283343.

The spelling of 256552554 in words is "two hundred fifty-six million, five hundred fifty-two thousand, five hundred fifty-four".