2531257512 has 32 divisors (see below), whose sum is σ = 7232164800. Its totient is φ = 723216384.

The previous prime is 2531257493. The next prime is 2531257523. The reversal of 2531257512 is 2157521352.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 7533337 + ... + 7533672.

It is an arithmetic number, because the mean of its divisors is an integer number (226005150).

Almost surely, 2^2531257512 is an apocalyptic number.

It is an amenable number.

2531257512 is an abundant number, since it is smaller than the sum of its proper divisors (4700907288).

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

2531257512 is a wasteful number, since it uses less digits than its factorization.

2531257512 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 15067025 (or 15067021 counting only the distinct ones).

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

The square root of 2531257512 is about 50311.6041485461. The cubic root of 2531257512 is about 1362.8417927916.

Adding to 2531257512 its reverse (2157521352), we get a palindrome (4688778864).

The spelling of 2531257512 in words is "two billion, five hundred thirty-one million, two hundred fifty-seven thousand, five hundred twelve".