2521151136 has 576 divisors, whose sum is σ = 9431976960. Its totient is φ = 650280960.

The previous prime is 2521151123. The next prime is 2521151137. The reversal of 2521151136 is 6311511252.

2521151136 is a `hidden beast` number, since 2 + 521 + 1 + 5 + 1 + 136 = 666.

It is a super-3 number, since 3×2521151136³ (a number of 29 digits) contains 333 as substring.

It is a Harshad number since it is a multiple of its sum of digits (27).

It is not an unprimeable number, because it can be changed into a prime (2521151137) by changing a digit.

It is a polite number, since it can be written in 95 ways as a sum of consecutive naturals, for example, 22311016 + ... + 22311128.

It is an arithmetic number, because the mean of its divisors is an integer number (16374960).

Almost surely, 2^2521151136 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 2521151136, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (4715988480).

2521151136 is an abundant number, since it is smaller than the sum of its proper divisors (6910825824).

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

2521151136 is a wasteful number, since it uses less digits than its factorization.

2521151136 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 194 (or 173 counting only the distinct ones).

The product of its digits is 1800, while the sum is 27.

The square root of 2521151136 is about 50211.0658719769. The cubic root of 2521151136 is about 1361.0255989332.

Adding to 2521151136 its reverse (6311511252), we get a palindrome (8832662388).

The spelling of 2521151136 in words is "two billion, five hundred twenty-one million, one hundred fifty-one thousand, one hundred thirty-six".