20255193 has 24 divisors (see below), whose sum is σ = 34219328. Its totient is φ = 11303712.

The previous prime is 20255173. The next prime is 20255201. The reversal of 20255193 is 39155202.

20255193 is a `hidden beast` number, since 20 + 2 + 551 + 93 = 666.

It is not a de Polignac number, because 20255193 - 2⁵ = 20255161 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (20255153) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 1030 + ... + 6447.

Almost surely, 2^20255193 is an apocalyptic number.

It is an amenable number.

20255193 is a deficient number, since it is larger than the sum of its proper divisors (13964135).

20255193 is a wasteful number, since it uses less digits than its factorization.

20255193 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 7533 (or 7530 counting only the distinct ones).

The product of its (nonzero) digits is 2700, while the sum is 27.

The square root of 20255193 is about 4500.5769630126. The cubic root of 20255193 is about 272.5913864575.

The spelling of 20255193 in words is "twenty million, two hundred fifty-five thousand, one hundred ninety-three".