2531043456 has 64 divisors (see below), whose sum is σ = 6823498080. Its totient is φ = 831080448.

The previous prime is 2531043451. The next prime is 2531043539. The reversal of 2531043456 is 6543401352.

It is a tau number, because it is divible by the number of its divisors (64).

It is not an unprimeable number, because it can be changed into a prime (2531043451) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 23461 + ... + 74916.

Almost surely, 2^2531043456 is an apocalyptic number.

It is an amenable number.

2531043456 is an abundant number, since it is smaller than the sum of its proper divisors (4292454624).

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

2531043456 is an equidigital number, since it uses as much as digits as its factorization.

2531043456 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 98461 (or 98449 counting only the distinct ones).

The product of its (nonzero) digits is 43200, while the sum is 33.

The square root of 2531043456 is about 50309.4768010958. The cubic root of 2531043456 is about 1362.8033754326.

The spelling of 2531043456 in words is "two billion, five hundred thirty-one million, forty-three thousand, four hundred fifty-six".