2521632 has 24 divisors (see below), whose sum is σ = 6619536. Its totient is φ = 840512.

The previous prime is 2521621. The next prime is 2521643. The reversal of 2521632 is 2361252.

It is an interprime number because it is at equal distance from previous prime (2521621) and next prime (2521643).

It is a tau number, because it is divible by the number of its divisors (24).

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

It is a junction number, because it is equal to n+sod(n) for n = 2521599 and 2521608.

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, 13038 + ... + 13229.

It is an arithmetic number, because the mean of its divisors is an integer number (275814).

2^2521632 is an apocalyptic number.

It is an amenable number.

2521632 is an abundant number, since it is smaller than the sum of its proper divisors (4097904).

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

2521632 is a wasteful number, since it uses less digits than its factorization.

2521632 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 26280 (or 26272 counting only the distinct ones).

The product of its digits is 720, while the sum is 21.

The square root of 2521632 is about 1587.9647351248. The cubic root of 2521632 is about 136.1112123775. Note that the first 3 decimals are identical.

Adding to 2521632 its reverse (2361252), we get a palindrome (4882884).

The spelling of 2521632 in words is "two million, five hundred twenty-one thousand, six hundred thirty-two".