20112955 has 24 divisors (see below), whose sum is σ = 26524800. Its totient is φ = 14622720.

The previous prime is 20112947. The next prime is 20112959. The reversal of 20112955 is 55921102.

It is not a de Polignac number, because 20112955 - 2³ = 20112947 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (20112959) 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, 44571 + ... + 45019.

It is an arithmetic number, because the mean of its divisors is an integer number (1105200).

Almost surely, 2^20112955 is an apocalyptic number.

20112955 is a deficient number, since it is larger than the sum of its proper divisors (6411845).

20112955 is a wasteful number, since it uses less digits than its factorization.

20112955 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 519 (or 502 counting only the distinct ones).

The product of its (nonzero) digits is 900, while the sum is 25.

The square root of 20112955 is about 4484.7469270852. The cubic root of 20112955 is about 271.9518143809.

The spelling of 20112955 in words is "twenty million, one hundred twelve thousand, nine hundred fifty-five".