2531120456 has 8 divisors (see below), whose sum is σ = 4745850870. Its totient is φ = 1265560224.

The previous prime is 2531120453. The next prime is 2531120467. The reversal of 2531120456 is 6540211352.

It can be written as a sum of positive squares in only one way, i.e., 2009728900 + 521391556 = 44830^2 + 22834^2 .

It is a tau number, because it is divible by the number of its divisors (8).

It is not an unprimeable number, because it can be changed into a prime (2531120453) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 158195021 + ... + 158195036.

Almost surely, 2^2531120456 is an apocalyptic number.

It is an amenable number.

2531120456 is a deficient number, since it is larger than the sum of its proper divisors (2214730414).

2531120456 is a wasteful number, since it uses less digits than its factorization.

2531120456 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 316390063 (or 316390059 counting only the distinct ones).

The product of its (nonzero) digits is 7200, while the sum is 29.

The square root of 2531120456 is about 50310.2420586504. The cubic root of 2531120456 is about 1362.8171951341.

The spelling of 2531120456 in words is "two billion, five hundred thirty-one million, one hundred twenty thousand, four hundred fifty-six".