20250879 has 16 divisors (see below), whose sum is σ = 30737664. Its totient is φ = 11739200.

The previous prime is 20250871. The next prime is 20250887. The reversal of 20250879 is 97805202.

It is an interprime number because it is at equal distance from previous prime (20250871) and next prime (20250887).

It is not a de Polignac number, because 20250879 - 2³ = 20250871 is a prime.

It is a Smith number, since the sum of its digits (33) coincides with the sum of the digits of its prime factors. Since it is squarefree, it is also a hoax number.

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

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (20250871) by changing a digit.

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 15 ways as a sum of consecutive naturals, for example, 12582 + ... + 14099.

It is an arithmetic number, because the mean of its divisors is an integer number (1921104).

Almost surely, 2^20250879 is an apocalyptic number.

20250879 is a deficient number, since it is larger than the sum of its proper divisors (10486785).

20250879 is a wasteful number, since it uses less digits than its factorization.

20250879 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 26718.

The product of its (nonzero) digits is 10080, while the sum is 33.

The square root of 20250879 is about 4500.0976656068. The cubic root of 20250879 is about 272.5720326925.

The spelling of 20250879 in words is "twenty million, two hundred fifty thousand, eight hundred seventy-nine".