20375255 has 16 divisors (see below), whose sum is σ = 25613280. Its totient is φ = 15539328.

The previous prime is 20375227. The next prime is 20375269. The reversal of 20375255 is 55257302.

It is a cyclic number.

It is not a de Polignac number, because 20375255 - 2¹² = 20371159 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (29).

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, 11189 + ... + 12881.

It is an arithmetic number, because the mean of its divisors is an integer number (1600830).

Almost surely, 2^20375255 is an apocalyptic number.

20375255 is a deficient number, since it is larger than the sum of its proper divisors (5238025).

20375255 is a wasteful number, since it uses less digits than its factorization.

20375255 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1810.

The product of its (nonzero) digits is 10500, while the sum is 29.

The square root of 20375255 is about 4513.8957675161. The cubic root of 20375255 is about 273.1289179881.

The spelling of 20375255 in words is "twenty million, three hundred seventy-five thousand, two hundred fifty-five".