2521153156 has 12 divisors (see below), whose sum is σ = 4413737692. Its totient is φ = 1260085248.

The previous prime is 2521153133. The next prime is 2521153157. The reversal of 2521153156 is 6513511252.

It can be written as a sum of positive squares in 2 ways, for example, as 1284505600 + 1236647556 = 35840^2 + 35166^2 .

It is not an unprimeable number, because it can be changed into a prime (2521153157) 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, 111165 + ... + 131908.

Almost surely, 2^2521153156 is an apocalyptic number.

It is an amenable number.

2521153156 is a deficient number, since it is larger than the sum of its proper divisors (1892584536).

2521153156 is a wasteful number, since it uses less digits than its factorization.

2521153156 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 245670 (or 245668 counting only the distinct ones).

The product of its digits is 9000, while the sum is 31.

The square root of 2521153156 is about 50211.0859870607. The cubic root of 2521153156 is about 1361.0259624273.

The spelling of 2521153156 in words is "two billion, five hundred twenty-one million, one hundred fifty-three thousand, one hundred fifty-six".