256053023 has 4 divisors (see below), whose sum is σ = 256958088. Its totient is φ = 255147960.

The previous prime is 256053019. The next prime is 256053037. The reversal of 256053023 is 320350652.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 256053023 - 2² = 256053019 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 256052983 and 256053001.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (256053013) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 452108 + ... + 452673.

It is an arithmetic number, because the mean of its divisors is an integer number (64239522).

Almost surely, 2^256053023 is an apocalyptic number.

256053023 is a deficient number, since it is larger than the sum of its proper divisors (905065).

256053023 is an equidigital number, since it uses as much as digits as its factorization.

256053023 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 905064.

The product of its (nonzero) digits is 5400, while the sum is 26.

The square root of 256053023 is about 16001.6568829606. The cubic root of 256053023 is about 635.0042556600.

The spelling of 256053023 in words is "two hundred fifty-six million, fifty-three thousand, twenty-three".