2531888491 has 8 divisors (see below), whose sum is σ = 2907432000. Its totient is φ = 2180573640.

The previous prime is 2531888477. The next prime is 2531888531. The reversal of 2531888491 is 1948881352.

It is a happy number.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 2531888491 - 2¹⁹ = 2531364203 is a prime.

It is not an unprimeable number, because it can be changed into a prime (2531886491) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 6056941 + ... + 6057358.

It is an arithmetic number, because the mean of its divisors is an integer number (363429000).

Almost surely, 2^2531888491 is an apocalyptic number.

2531888491 is a deficient number, since it is larger than the sum of its proper divisors (375543509).

2531888491 is a wasteful number, since it uses less digits than its factorization.

2531888491 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 12114329.

The product of its digits is 552960, while the sum is 49.

The square root of 2531888491 is about 50317.8744682245. The cubic root of 2531888491 is about 1362.9550241407.

The spelling of 2531888491 in words is "two billion, five hundred thirty-one million, eight hundred eighty-eight thousand, four hundred ninety-one".