20112552020 has 24 divisors (see below), whose sum is σ = 46076028768. Its totient is φ = 7313655200.

The previous prime is 20112552001. The next prime is 20112552029. The reversal of 20112552020 is 2025521102.

It is a happy number.

It is a Harshad number since it is a multiple of its sum of digits (20).

It is a junction number, because it is equal to n+sod(n) for n = 20112551983 and 20112552001.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (20112552029) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 45710126 + ... + 45710565.

It is an arithmetic number, because the mean of its divisors is an integer number (1919834532).

Almost surely, 2^20112552020 is an apocalyptic number.

20112552020 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

20112552020 is an abundant number, since it is smaller than the sum of its proper divisors (25963476748).

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

20112552020 is a wasteful number, since it uses less digits than its factorization.

20112552020 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 91420711 (or 91420709 counting only the distinct ones).

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

The spelling of 20112552020 in words is "twenty billion, one hundred twelve million, five hundred fifty-two thousand, twenty".