2521332404 has 24 divisors (see below), whose sum is σ = 4669031808. Its totient is φ = 1188867680.

The previous prime is 2521332389. The next prime is 2521332449. The reversal of 2521332404 is 4042331252.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 186467 + ... + 199530.

It is an arithmetic number, because the mean of its divisors is an integer number (194542992).

Almost surely, 2^2521332404 is an apocalyptic number.

It is an amenable number.

2521332404 is a deficient number, since it is larger than the sum of its proper divisors (2147699404).

2521332404 is a wasteful number, since it uses less digits than its factorization.

2521332404 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 386095 (or 386093 counting only the distinct ones).

The product of its (nonzero) digits is 5760, while the sum is 26.

The square root of 2521332404 is about 50212.8708998002. The cubic root of 2521332404 is about 1361.0582169004.

Adding to 2521332404 its reverse (4042331252), we get a palindrome (6563663656).

The spelling of 2521332404 in words is "two billion, five hundred twenty-one million, three hundred thirty-two thousand, four hundred four".