1615000256 has 28 divisors (see below), whose sum is σ = 3315279120. Its totient is φ = 779654400.

The previous prime is 1615000249. The next prime is 1615000267. The reversal of 1615000256 is 6520005161.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 433220 + ... + 436931.

Almost surely, 2^1615000256 is an apocalyptic number.

1615000256 is a gapful number since it is divisible by the number (16) formed by its first and last digit.

It is an amenable number.

1615000256 is an abundant number, since it is smaller than the sum of its proper divisors (1700278864).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

1615000256 is an equidigital number, since it uses as much as digits as its factorization.

1615000256 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 870192 (or 870182 counting only the distinct ones).

The product of its (nonzero) digits is 1800, while the sum is 26.

The square root of 1615000256 is about 40187.0657799248. The cubic root of 1615000256 is about 1173.2508166258.

The spelling of 1615000256 in words is "one billion, six hundred fifteen million, two hundred fifty-six", and thus it is an aban number.