2531005604 has 12 divisors (see below), whose sum is σ = 4537290828. Its totient is φ = 1234636800.

The previous prime is 2531005597. The next prime is 2531005639. The reversal of 2531005604 is 4065001352.

It can be written as a sum of positive squares in 2 ways, for example, as 478734400 + 2052271204 = 21880^2 + 45302^2 .

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 7716317 + ... + 7716644.

It is an arithmetic number, because the mean of its divisors is an integer number (378107569).

Almost surely, 2^2531005604 is an apocalyptic number.

It is an amenable number.

2531005604 is a deficient number, since it is larger than the sum of its proper divisors (2006285224).

2531005604 is a wasteful number, since it uses less digits than its factorization.

2531005604 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 15433006 (or 15433004 counting only the distinct ones).

The product of its (nonzero) digits is 3600, while the sum is 26.

The square root of 2531005604 is about 50309.1006081405. The cubic root of 2531005604 is about 1362.7965817799.

Adding to 2531005604 its reverse (4065001352), we get a palindrome (6596006956).

The spelling of 2531005604 in words is "two billion, five hundred thirty-one million, five thousand, six hundred four".