256053770 has 16 divisors (see below), whose sum is σ = 526739328. Its totient is φ = 87789840.

The previous prime is 256053757. The next prime is 256053781. The reversal of 256053770 is 77350652.

It is a Harshad number since it is a multiple of its sum of digits (35).

It is a self number, because there is not a number n which added to its sum of digits gives 256053770.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 1828886 + ... + 1829025.

It is an arithmetic number, because the mean of its divisors is an integer number (32921208).

Almost surely, 2^256053770 is an apocalyptic number.

256053770 is an abundant number, since it is smaller than the sum of its proper divisors (270685558).

256053770 is a wasteful number, since it uses less digits than its factorization.

256053770 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3657925.

The product of its (nonzero) digits is 44100, while the sum is 35.

The square root of 256053770 is about 16001.6802242764. The cubic root of 256053770 is about 635.0048731723.

The spelling of 256053770 in words is "two hundred fifty-six million, fifty-three thousand, seven hundred seventy".