20112554 has 32 divisors (see below), whose sum is σ = 38247552. Its totient is φ = 7704000.

The previous prime is 20112541. The next prime is 20112601. The reversal of 20112554 is 45521102.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 8324 + ... + 10464.

It is an arithmetic number, because the mean of its divisors is an integer number (1195236).

Almost surely, 2^20112554 is an apocalyptic number.

20112554 is a deficient number, since it is larger than the sum of its proper divisors (18134998).

20112554 is a wasteful number, since it uses less digits than its factorization.

20112554 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2222.

The product of its (nonzero) digits is 400, while the sum is 20.

The square root of 20112554 is about 4484.7022197689. The cubic root of 20112554 is about 271.9500070317.

Adding to 20112554 its reverse (45521102), we get a palindrome (65633656).

The spelling of 20112554 in words is "twenty million, one hundred twelve thousand, five hundred fifty-four".