2531533516 has 6 divisors (see below), whose sum is σ = 4430183660. Its totient is φ = 1265766756.

The previous prime is 2531533481. The next prime is 2531533517. The reversal of 2531533516 is 6153351352.

It is not an unprimeable number, because it can be changed into a prime (2531533517) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 316441686 + ... + 316441693.

Almost surely, 2^2531533516 is an apocalyptic number.

It is an amenable number.

2531533516 is a deficient number, since it is larger than the sum of its proper divisors (1898650144).

2531533516 is a wasteful number, since it uses less digits than its factorization.

2531533516 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 632883383 (or 632883381 counting only the distinct ones).

The product of its digits is 40500, while the sum is 34.

The square root of 2531533516 is about 50314.3470195132. The cubic root of 2531533516 is about 1362.8913249726.

Adding to 2531533516 its reverse (6153351352), we get a palindrome (8684884868).

The spelling of 2531533516 in words is "two billion, five hundred thirty-one million, five hundred thirty-three thousand, five hundred sixteen".