256054393 has 32 divisors (see below), whose sum is σ = 321923840. Its totient is φ = 198754560.

The previous prime is 256054367. The next prime is 256054417. The reversal of 256054393 is 393450652.

256054393 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a cyclic number.

It is not a de Polignac number, because 256054393 - 2⁵ = 256054361 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (37).

It is not an unprimeable number, because it can be changed into a prime (256054333) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 299755 + ... + 300607.

It is an arithmetic number, because the mean of its divisors is an integer number (10060120).

Almost surely, 2^256054393 is an apocalyptic number.

It is an amenable number.

256054393 is a deficient number, since it is larger than the sum of its proper divisors (65869447).

256054393 is a wasteful number, since it uses less digits than its factorization.

256054393 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 977.

The product of its (nonzero) digits is 97200, while the sum is 37.

The square root of 256054393 is about 16001.6996909703. The cubic root of 256054393 is about 635.0053881784.

It can be divided in two parts, 2560 and 54393, that added together give a triangular number (56953 = T₃₃₇).

The spelling of 256054393 in words is "two hundred fifty-six million, fifty-four thousand, three hundred ninety-three".