256225454 has 8 divisors (see below), whose sum is σ = 385386528. Its totient is φ = 127763280.

The previous prime is 256225427. The next prime is 256225477. The reversal of 256225454 is 454522652.

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

It is a super-2 number, since 2×256225454² = 131302966555012232, which contains 22 as substring.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 173807 + ... + 175274.

It is an arithmetic number, because the mean of its divisors is an integer number (48173316).

Almost surely, 2^256225454 is an apocalyptic number.

256225454 is a deficient number, since it is larger than the sum of its proper divisors (129161074).

256225454 is a wasteful number, since it uses less digits than its factorization.

256225454 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 349450.

The product of its digits is 96000, while the sum is 35.

The square root of 256225454 is about 16007.0438869893. The cubic root of 256225454 is about 635.1467650098.

The spelling of 256225454 in words is "two hundred fifty-six million, two hundred twenty-five thousand, four hundred fifty-four".