2524921 has 9 divisors (see below), whose sum is σ = 2950149. Its totient is φ = 2154684.

The previous prime is 2524913. The next prime is 2524927. The reversal of 2524921 is 1294252.

The square root of 2524921 is 1589.

It is a perfect power (a square), and thus also a powerful number.

It is not a de Polignac number, because 2524921 - 2³ = 2524913 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (2524927) by changing a digit.

It is a polite number, since it can be written in 8 ways as a sum of consecutive naturals, for example, 11010 + ... + 11236.

2^2524921 is an apocalyptic number.

2524921 is the 1589-th square number.

2524921 is the 795-th centered octagonal number.

It is an amenable number.

2524921 is a deficient number, since it is larger than the sum of its proper divisors (425228).

2524921 is an frugal number, since it uses more digits than its factorization.

2524921 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 468 (or 234 counting only the distinct ones).

The product of its digits is 1440, while the sum is 25.

The cubic root of 2524921 is about 136.1703639223.

Multiplying 2524921 by its sum of digits (25), we get a square (63123025 = 7945²).

The spelling of 2524921 in words is "two million, five hundred twenty-four thousand, nine hundred twenty-one".