20252859 has 12 divisors (see below), whose sum is σ = 29682408. Its totient is φ = 12274240.

The previous prime is 20252851. The next prime is 20252861. The reversal of 20252859 is 95825202.

It is not a de Polignac number, because 20252859 - 2³ = 20252851 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (33).

It is not an unprimeable number, because it can be changed into a prime (20252851) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 27534 + ... + 28259.

It is an arithmetic number, because the mean of its divisors is an integer number (2473534).

Almost surely, 2^20252859 is an apocalyptic number.

20252859 is a deficient number, since it is larger than the sum of its proper divisors (9429549).

20252859 is a wasteful number, since it uses less digits than its factorization.

20252859 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 55818 (or 55807 counting only the distinct ones).

The product of its (nonzero) digits is 14400, while the sum is 33.

The square root of 20252859 is about 4500.3176554550. The cubic root of 20252859 is about 272.5809158466.

It can be divided in two parts, 2025 and 2859, that added together give a palindrome (4884).

The spelling of 20252859 in words is "twenty million, two hundred fifty-two thousand, eight hundred fifty-nine".