20212875 has 64 divisors (see below), whose sum is σ = 38413440. Its totient is φ = 10483200.

The previous prime is 20212853. The next prime is 20212889. The reversal of 20212875 is 57821202.

It is not a de Polignac number, because 20212875 - 2⁷ = 20212747 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (27).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 63 ways as a sum of consecutive naturals, for example, 178819 + ... + 178931.

It is an arithmetic number, because the mean of its divisors is an integer number (600210).

Almost surely, 2^20212875 is an apocalyptic number.

20212875 is a gapful number since it is divisible by the number (25) formed by its first and last digit.

20212875 is a deficient number, since it is larger than the sum of its proper divisors (18200565).

20212875 is a wasteful number, since it uses less digits than its factorization.

20212875 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 190 (or 174 counting only the distinct ones).

The product of its (nonzero) digits is 2240, while the sum is 27.

The square root of 20212875 is about 4495.8731076399. The cubic root of 20212875 is about 272.4014176409.

The spelling of 20212875 in words is "twenty million, two hundred twelve thousand, eight hundred seventy-five".