20055672 has 96 divisors (see below), whose sum is σ = 66874080. Its totient is φ = 5287680.

The previous prime is 20055661. The next prime is 20055709. The reversal of 20055672 is 27655002.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 5022 + ... + 8082.

It is an arithmetic number, because the mean of its divisors is an integer number (696605).

Almost surely, 2^20055672 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 20055672, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (33437040).

20055672 is an abundant number, since it is smaller than the sum of its proper divisors (46818408).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

20055672 is a wasteful number, since it uses less digits than its factorization.

20055672 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3093 (or 3086 counting only the distinct ones).

The product of its (nonzero) digits is 4200, while the sum is 27.

The square root of 20055672 is about 4478.3559483364. The cubic root of 20055672 is about 271.6933900887.

The spelling of 20055672 in words is "twenty million, fifty-five thousand, six hundred seventy-two".