20995252 has 12 divisors (see below), whose sum is σ = 36832320. Its totient is φ = 10471736.

The previous prime is 20995237. The next prime is 20995267. The reversal of 20995252 is 25259902.

It is an interprime number because it is at equal distance from previous prime (20995237) and next prime (20995267).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 4588 + ... + 7939.

It is an arithmetic number, because the mean of its divisors is an integer number (3069360).

Almost surely, 2^20995252 is an apocalyptic number.

It is an amenable number.

20995252 is a deficient number, since it is larger than the sum of its proper divisors (15837068).

20995252 is a wasteful number, since it uses less digits than its factorization.

20995252 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 12950 (or 12948 counting only the distinct ones).

The product of its (nonzero) digits is 16200, while the sum is 34.

The square root of 20995252 is about 4582.0576163990. The cubic root of 20995252 is about 275.8716234169.

The spelling of 20995252 in words is "twenty million, nine hundred ninety-five thousand, two hundred fifty-two".