20652975 has 120 divisors (see below), whose sum is σ = 46092288. Its totient is φ = 8942400.

The previous prime is 20652967. The next prime is 20653001. The reversal of 20652975 is 57925602.

It is not a de Polignac number, because 20652975 - 2³ = 20652967 is a prime.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 119 ways as a sum of consecutive naturals, for example, 439402 + ... + 439448.

Almost surely, 2^20652975 is an apocalyptic number.

20652975 is a gapful number since it is divisible by the number (25) formed by its first and last digit.

20652975 is an abundant number, since it is smaller than the sum of its proper divisors (25439313).

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

20652975 is a wasteful number, since it uses less digits than its factorization.

20652975 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 107 (or 93 counting only the distinct ones).

The product of its (nonzero) digits is 37800, while the sum is 36.

The square root of 20652975 is about 4544.5544336051. The cubic root of 20652975 is about 274.3642614747.

The spelling of 20652975 in words is "twenty million, six hundred fifty-two thousand, nine hundred seventy-five".