256151522 has 8 divisors (see below), whose sum is σ = 419157072. Its totient is φ = 116432500.

The previous prime is 256151513. The next prime is 256151527. The reversal of 256151522 is 225151652.

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

It is a super-2 number, since 2×256151522² = 131227204445832968, which contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (256151527) 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, 5821604 + ... + 5821647.

It is an arithmetic number, because the mean of its divisors is an integer number (52394634).

Almost surely, 2^256151522 is an apocalyptic number.

256151522 is a gapful number since it is divisible by the number (22) formed by its first and last digit.

256151522 is a deficient number, since it is larger than the sum of its proper divisors (163005550).

256151522 is a wasteful number, since it uses less digits than its factorization.

256151522 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 11643264.

The product of its digits is 6000, while the sum is 29.

The square root of 256151522 is about 16004.7343620567. The cubic root of 256151522 is about 635.0856701328.

The spelling of 256151522 in words is "two hundred fifty-six million, one hundred fifty-one thousand, five hundred twenty-two".