20255335 has 4 divisors (see below), whose sum is σ = 24306408. Its totient is φ = 16204264.

The previous prime is 20255329. The next prime is 20255371. The reversal of 20255335 is 53355202.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 53355202 = 2 ⋅26677601.

It is a cyclic number.

It is not a de Polignac number, because 20255335 - 2⁵ = 20255303 is a prime.

It is a Duffinian number.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 2025529 + ... + 2025538.

It is an arithmetic number, because the mean of its divisors is an integer number (6076602).

Almost surely, 2^20255335 is an apocalyptic number.

20255335 is a deficient number, since it is larger than the sum of its proper divisors (4051073).

20255335 is an equidigital number, since it uses as much as digits as its factorization.

20255335 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4051072.

The product of its (nonzero) digits is 4500, while the sum is 25.

The square root of 20255335 is about 4500.5927387401. The cubic root of 20255335 is about 272.5920234610.

The spelling of 20255335 in words is "twenty million, two hundred fifty-five thousand, three hundred thirty-five".