2013251556 has 48 divisors (see below), whose sum is σ = 4757296320. Its totient is φ = 662576640.

The previous prime is 2013251549. The next prime is 2013251557. The reversal of 2013251556 is 6551523102.

It is a happy number.

It is a super-2 number, since 2×2013251556² = 8106363655472842272, which contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (2013251557) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 1410115 + ... + 1411541.

It is an arithmetic number, because the mean of its divisors is an integer number (99110340).

Almost surely, 2^2013251556 is an apocalyptic number.

It is an amenable number.

2013251556 is an abundant number, since it is smaller than the sum of its proper divisors (2744044764).

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

2013251556 is a wasteful number, since it uses less digits than its factorization.

2013251556 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2844 (or 2842 counting only the distinct ones).

The product of its (nonzero) digits is 9000, while the sum is 30.

The square root of 2013251556 is about 44869.2718461087. The cubic root of 2013251556 is about 1262.6975790636.

Adding to 2013251556 its reverse (6551523102), we get a palindrome (8564774658).

The spelling of 2013251556 in words is "two billion, thirteen million, two hundred fifty-one thousand, five hundred fifty-six".