2531540330 has 16 divisors (see below), whose sum is σ = 4971024864. Its totient is φ = 920560080.

The previous prime is 2531540309. The next prime is 2531540357. The reversal of 2531540330 is 330451352.

It is a self number, because there is not a number n which added to its sum of digits gives 2531540330.

It is an unprimeable number.

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 in 7 ways as a sum of consecutive naturals, for example, 11506892 + ... + 11507111.

It is an arithmetic number, because the mean of its divisors is an integer number (310689054).

Almost surely, 2^2531540330 is an apocalyptic number.

2531540330 is a deficient number, since it is larger than the sum of its proper divisors (2439484534).

2531540330 is a wasteful number, since it uses less digits than its factorization.

2531540330 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 23014021.

The product of its (nonzero) digits is 5400, while the sum is 26.

The square root of 2531540330 is about 50314.4147337520. The cubic root of 2531540330 is about 1362.8925477799.

Adding to 2531540330 its reverse (330451352), we get a palindrome (2861991682).

The spelling of 2531540330 in words is "two billion, five hundred thirty-one million, five hundred forty thousand, three hundred thirty".