2502621 has 24 divisors (see below), whose sum is σ = 4178304. Its totient is φ = 1426560.

The previous prime is 2502593. The next prime is 2502629. The reversal of 2502621 is 1262052.

It is not a de Polignac number, because 2502621 - 2¹⁸ = 2240477 is a prime.

It is a super-2 number, since 2×2502621² = 12526223739282, which contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 2502594 and 2502603.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2502629) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 940 + ... + 2426.

It is an arithmetic number, because the mean of its divisors is an integer number (174096).

2^2502621 is an apocalyptic number.

It is an amenable number.

2502621 is a deficient number, since it is larger than the sum of its proper divisors (1675683).

2502621 is a wasteful number, since it uses less digits than its factorization.

2502621 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1521 (or 1518 counting only the distinct ones).

The product of its (nonzero) digits is 240, while the sum is 18.

The square root of 2502621 is about 1581.9674459356. The cubic root of 2502621 is about 135.7682941880.

Adding to 2502621 its reverse (1262052), we get a palindrome (3764673).

The spelling of 2502621 in words is "two million, five hundred two thousand, six hundred twenty-one".