20252255 has 4 divisors (see below), whose sum is σ = 24302712. Its totient is φ = 16201800.

The previous prime is 20252231. The next prime is 20252273. The reversal of 20252255 is 55225202.

It is a happy number.

It is a semiprime because it is the product of two primes.

It is not a de Polignac number, because 20252255 - 2¹⁸ = 19990111 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 20252255.

It is a congruent number.

It is an unprimeable number.

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 3 ways as a sum of consecutive naturals, for example, 2025221 + ... + 2025230.

It is an arithmetic number, because the mean of its divisors is an integer number (6075678).

Almost surely, 2^20252255 is an apocalyptic number.

20252255 is a deficient number, since it is larger than the sum of its proper divisors (4050457).

20252255 is an equidigital number, since it uses as much as digits as its factorization.

20252255 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4050456.

The product of its (nonzero) digits is 2000, while the sum is 23.

The square root of 20252255 is about 4500.2505485806. The cubic root of 20252255 is about 272.5782060973.

Adding to 20252255 its reverse (55225202), we get a palindrome (75477457).

The spelling of 20252255 in words is "twenty million, two hundred fifty-two thousand, two hundred fifty-five".