20854901 has 8 divisors (see below), whose sum is σ = 21254400. Its totient is φ = 20458480.

The previous prime is 20854891. The next prime is 20854919. The reversal of 20854901 is 10945802.

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

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-20854901 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (20854921) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 16355 + ... + 17583.

It is an arithmetic number, because the mean of its divisors is an integer number (2656800).

Almost surely, 2^20854901 is an apocalyptic number.

It is an amenable number.

20854901 is a deficient number, since it is larger than the sum of its proper divisors (399499).

20854901 is a wasteful number, since it uses less digits than its factorization.

20854901 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1539.

The product of its (nonzero) digits is 2880, while the sum is 29.

The square root of 20854901 is about 4566.7166542276. The cubic root of 20854901 is about 275.2555244817.

Subtracting from 20854901 its reverse (10945802), we obtain a palindrome (9909099).

The spelling of 20854901 in words is "twenty million, eight hundred fifty-four thousand, nine hundred one".