20855352 has 32 divisors (see below), whose sum is σ = 59587200. Its totient is φ = 5958624.

The previous prime is 20855333. The next prime is 20855371. The reversal of 20855352 is 25355802.

It is an interprime number because it is at equal distance from previous prime (20855333) and next prime (20855371).

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 61902 + ... + 62237.

It is an arithmetic number, because the mean of its divisors is an integer number (1862100).

Almost surely, 2^20855352 is an apocalyptic number.

It is an amenable number.

20855352 is an abundant number, since it is smaller than the sum of its proper divisors (38731848).

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

20855352 is a wasteful number, since it uses less digits than its factorization.

20855352 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 124155 (or 124151 counting only the distinct ones).

The product of its (nonzero) digits is 12000, while the sum is 30.

The square root of 20855352 is about 4566.7660329822. The cubic root of 20855352 is about 275.2575086571.

The spelling of 20855352 in words is "twenty million, eight hundred fifty-five thousand, three hundred fifty-two".