20855695 has 8 divisors (see below), whose sum is σ = 28602144. Its totient is φ = 14301024.

The previous prime is 20855689. The next prime is 20855701. The reversal of 20855695 is 59655802.

It is an interprime number because it is at equal distance from previous prime (20855689) and next prime (20855701).

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 20855695 - 2⁵ = 20855663 is a prime.

It is a Duffinian number.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 297904 + ... + 297973.

It is an arithmetic number, because the mean of its divisors is an integer number (3575268).

Almost surely, 2^20855695 is an apocalyptic number.

20855695 is a deficient number, since it is larger than the sum of its proper divisors (7746449).

20855695 is an equidigital number, since it uses as much as digits as its factorization.

20855695 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 595889.

The product of its (nonzero) digits is 108000, while the sum is 40.

The square root of 20855695 is about 4566.8035867552. The cubic root of 20855695 is about 275.2590176672.

The spelling of 20855695 in words is "twenty million, eight hundred fifty-five thousand, six hundred ninety-five".