20254505 has 8 divisors (see below), whose sum is σ = 24870912. Its totient is φ = 15826608.

The previous prime is 20254483. The next prime is 20254511. The reversal of 20254505 is 50545202.

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 20254505 - 2⁸ = 20254249 is a prime.

It is a Duffinian number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 46889 + ... + 47318.

It is an arithmetic number, because the mean of its divisors is an integer number (3108864).

Almost surely, 2^20254505 is an apocalyptic number.

It is an amenable number.

20254505 is a deficient number, since it is larger than the sum of its proper divisors (4616407).

20254505 is an equidigital number, since it uses as much as digits as its factorization.

20254505 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 94255.

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

The square root of 20254505 is about 4500.5005277191. The cubic root of 20254505 is about 272.5883000885.

Adding to 20254505 its reverse (50545202), we get a palindrome (70799707).

It can be divided in two parts, 2025450 and 5, that multiplied together give a triangular number (10127250 = T₄₅₀₀).

The spelling of 20254505 in words is "twenty million, two hundred fifty-four thousand, five hundred five".