2521992 has 64 divisors (see below), whose sum is σ = 7076160. Its totient is φ = 742400.

The previous prime is 2521979. The next prime is 2522011. The reversal of 2521992 is 2991252.

2521992 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 10708 + ... + 10940.

It is an arithmetic number, because the mean of its divisors is an integer number (110565).

2^2521992 is an apocalyptic number.

2521992 is a gapful number since it is divisible by the number (22) 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 2521992, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (3538080).

2521992 is an abundant number, since it is smaller than the sum of its proper divisors (4554168).

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

2521992 is a wasteful number, since it uses less digits than its factorization.

2521992 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 294 (or 290 counting only the distinct ones).

The product of its digits is 3240, while the sum is 30.

The square root of 2521992 is about 1588.0780837226. The cubic root of 2521992 is about 136.1176893608.

The spelling of 2521992 in words is "two million, five hundred twenty-one thousand, nine hundred ninety-two".