2015256750 has 128 divisors (see below), whose sum is σ = 5459650560. Its totient is φ = 492163200.

The previous prime is 2015256739. The next prime is 2015256751. The reversal of 2015256750 is 576525102.

It is a super-2 number, since 2×2015256750² = 8122519536841125000, which contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2015256751) by changing a digit.

It is a polite number, since it can be written in 63 ways as a sum of consecutive naturals, for example, 1354507 + ... + 1355993.

It is an arithmetic number, because the mean of its divisors is an integer number (42653520).

Almost surely, 2^2015256750 is an apocalyptic number.

It is a practical number, because each smaller number is the sum of distinct divisors of 2015256750, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (2729825280).

2015256750 is an abundant number, since it is smaller than the sum of its proper divisors (3444393810).

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

2015256750 is a wasteful number, since it uses less digits than its factorization.

2015256750 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1659 (or 1649 counting only the distinct ones).

The product of its (nonzero) digits is 21000, while the sum is 33.

The square root of 2015256750 is about 44891.6111317025. The cubic root of 2015256750 is about 1263.1166546066.

The spelling of 2015256750 in words is "two billion, fifteen million, two hundred fifty-six thousand, seven hundred fifty".