20265255 has 32 divisors (see below), whose sum is σ = 36875520. Its totient is φ = 10553760.

The previous prime is 20265253. The next prime is 20265269. The reversal of 20265255 is 55256202.

20265255 is a `hidden beast` number, since 2 + 0 + 2 + 652 + 5 + 5 = 666.

It is not a de Polignac number, because 20265255 - 2¹ = 20265253 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 not an unprimeable number, because it can be changed into a prime (20265253) 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 31 ways as a sum of consecutive naturals, for example, 4060 + ... + 7550.

It is an arithmetic number, because the mean of its divisors is an integer number (1152360).

Almost surely, 2^20265255 is an apocalyptic number.

20265255 is a deficient number, since it is larger than the sum of its proper divisors (16610265).

20265255 is a wasteful number, since it uses less digits than its factorization.

20265255 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3548 (or 3542 counting only the distinct ones).

The product of its (nonzero) digits is 6000, while the sum is 27.

The square root of 20265255 is about 4501.6946808952. The cubic root of 20265255 is about 272.6365166204.

The spelling of 20265255 in words is "twenty million, two hundred sixty-five thousand, two hundred fifty-five".