2015455256 has 8 divisors (see below), whose sum is σ = 3778978620. Its totient is φ = 1007727624.

The previous prime is 2015455243. The next prime is 2015455271. The reversal of 2015455256 is 6525545102.

It is a tau number, because it is divible by the number of its divisors (8).

It is a congruent number.

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 as a sum of consecutive naturals, namely, 125965946 + ... + 125965961.

Almost surely, 2^2015455256 is an apocalyptic number.

It is an amenable number.

2015455256 is a deficient number, since it is larger than the sum of its proper divisors (1763523364).

2015455256 is a wasteful number, since it uses less digits than its factorization.

2015455256 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 251931913 (or 251931909 counting only the distinct ones).

The product of its (nonzero) digits is 60000, while the sum is 35.

The square root of 2015455256 is about 44893.8220248622. The cubic root of 2015455256 is about 1263.1581262458.

The spelling of 2015455256 in words is "two billion, fifteen million, four hundred fifty-five thousand, two hundred fifty-six".