256054899 has 8 divisors (see below), whose sum is σ = 341768592. Its totient is φ = 170522240.

The previous prime is 256054871. The next prime is 256054933. The reversal of 256054899 is 998450652.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-256054899 is a prime.

It is a super-2 number, since 2×256054899² = 131128222603800402, which contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (256054199) 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, 41922 + ... + 47639.

It is an arithmetic number, because the mean of its divisors is an integer number (42721074).

Almost surely, 2^256054899 is an apocalyptic number.

256054899 is a deficient number, since it is larger than the sum of its proper divisors (85713693).

256054899 is an equidigital number, since it uses as much as digits as its factorization.

256054899 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 90517.

The product of its (nonzero) digits is 777600, while the sum is 48.

The square root of 256054899 is about 16001.7155017829. The cubic root of 256054899 is about 635.0058064652.

The spelling of 256054899 in words is "two hundred fifty-six million, fifty-four thousand, eight hundred ninety-nine".