2521900 has 18 divisors (see below), whose sum is σ = 5472740. Its totient is φ = 1008720.

The previous prime is 2521847. The next prime is 2521901. The reversal of 2521900 is 91252.

It is a super-2 number, since 2×2521900² = 12719959220000, which contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (2521901) by changing a digit.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 12510 + ... + 12709.

2^2521900 is an apocalyptic number.

2521900 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

2521900 is an abundant number, since it is smaller than the sum of its proper divisors (2950840).

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

2521900 is a wasteful number, since it uses less digits than its factorization.

2521900 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 25233 (or 25226 counting only the distinct ones).

The product of its (nonzero) digits is 180, while the sum is 19.

The square root of 2521900 is about 1588.0491176283. The cubic root of 2521900 is about 136.1160341903.

The spelling of 2521900 in words is "two million, five hundred twenty-one thousand, nine hundred".