2521472 has 16 divisors (see below), whose sum is σ = 5023500. Its totient is φ = 1260672.

The previous prime is 2521469. The next prime is 2521481. The reversal of 2521472 is 2741252.

It is a happy number.

It is a tau number, because it is divible by the number of its divisors (16).

It is an alternating number because its digits alternate between even and odd.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 9722 + ... + 9977.

2^2521472 is an apocalyptic number.

It is an amenable number.

2521472 is a deficient number, since it is larger than the sum of its proper divisors (2502028).

2521472 is an equidigital number, since it uses as much as digits as its factorization.

2521472 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 19713 (or 19701 counting only the distinct ones).

The product of its digits is 1120, while the sum is 23.

The square root of 2521472 is about 1587.9143553731. The cubic root of 2521472 is about 136.1083335204.

The spelling of 2521472 in words is "two million, five hundred twenty-one thousand, four hundred seventy-two".