20250455 has 8 divisors (see below), whose sum is σ = 24343872. Its totient is φ = 16171488.

The previous prime is 20250421. The next prime is 20250457. The reversal of 20250455 is 55405202.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 20250455 - 2⁸ = 20250199 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 20250455.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (20250457) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 239 + ... + 6368.

It is an arithmetic number, because the mean of its divisors is an integer number (3042984).

Almost surely, 2^20250455 is an apocalyptic number.

20250455 is a deficient number, since it is larger than the sum of its proper divisors (4093417).

20250455 is an equidigital number, since it uses as much as digits as its factorization.

20250455 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 7225.

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

The square root of 20250455 is about 4500.0505552716. The cubic root of 20250455 is about 272.5701303660.

Adding to 20250455 its reverse (55405202), we get a palindrome (75655657).

The spelling of 20250455 in words is "twenty million, two hundred fifty thousand, four hundred fifty-five".