2531306004 has 24 divisors (see below), whose sum is σ = 5932872960. Its totient is φ = 839984064.

The previous prime is 2531306003. The next prime is 2531306033. The reversal of 2531306004 is 4006031352.

It is a happy number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2531306003) 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, 470289 + ... + 475640.

It is an arithmetic number, because the mean of its divisors is an integer number (247203040).

Almost surely, 2^2531306004 is an apocalyptic number.

It is an amenable number.

2531306004 is an abundant number, since it is smaller than the sum of its proper divisors (3401566956).

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

2531306004 is a wasteful number, since it uses less digits than its factorization.

2531306004 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 946159 (or 946157 counting only the distinct ones).

The product of its (nonzero) digits is 2160, while the sum is 24.

The square root of 2531306004 is about 50312.0860628935. The cubic root of 2531306004 is about 1362.8504955151.

Adding to 2531306004 its reverse (4006031352), we get a palindrome (6537337356).

The spelling of 2531306004 in words is "two billion, five hundred thirty-one million, three hundred six thousand, four".