2521104 has 40 divisors (see below), whose sum is σ = 6642432. Its totient is φ = 823680.

The previous prime is 2521093. The next prime is 2521111. The reversal of 2521104 is 4011252.

It is an Ulam 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, 2049 + ... + 3039.

2^2521104 is an apocalyptic number.

2521104 is a gapful number since it is divisible by the number (24) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 2521104, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (3321216).

2521104 is an abundant number, since it is smaller than the sum of its proper divisors (4121328).

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

2521104 is a wasteful number, since it uses less digits than its factorization.

2521104 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1055 (or 1049 counting only the distinct ones).

The product of its (nonzero) digits is 80, while the sum is 15.

The square root of 2521104 is about 1587.7984758778. The cubic root of 2521104 is about 136.1017116868.

Adding to 2521104 its reverse (4011252), we get a palindrome (6532356).

The spelling of 2521104 in words is "two million, five hundred twenty-one thousand, one hundred four".