20514885 has 16 divisors (see below), whose sum is σ = 32976384. Its totient is φ = 10890432.

The previous prime is 20514877. The next prime is 20514899. The reversal of 20514885 is 58841502.

It is not a de Polignac number, because 20514885 - 2³ = 20514877 is a prime.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 279 + ... + 6411.

It is an arithmetic number, because the mean of its divisors is an integer number (2061024).

Almost surely, 2^20514885 is an apocalyptic number.

It is an amenable number.

20514885 is a deficient number, since it is larger than the sum of its proper divisors (12461499).

20514885 is a wasteful number, since it uses less digits than its factorization.

20514885 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 6364.

The product of its (nonzero) digits is 12800, while the sum is 33.

The square root of 20514885 is about 4529.3360440577. The cubic root of 20514885 is about 273.7514084288.

The spelling of 20514885 in words is "twenty million, five hundred fourteen thousand, eight hundred eighty-five".