20265625020 has 48 divisors (see below), whose sum is σ = 56780549280. Its totient is φ = 5400662016.

The previous prime is 20265624989. The next prime is 20265625027. The reversal of 20265625020 is 2052656202.

It is a Harshad number since it is a multiple of its sum of digits (30).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (20265625027) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 15565 + ... + 201924.

It is an arithmetic number, because the mean of its divisors is an integer number (1182928110).

Almost surely, 2^20265625020 is an apocalyptic number.

20265625020 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

20265625020 is an abundant number, since it is smaller than the sum of its proper divisors (36514924260).

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

20265625020 is a wasteful number, since it uses less digits than its factorization.

20265625020 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 219054 (or 219052 counting only the distinct ones).

The product of its (nonzero) digits is 14400, while the sum is 30.

The spelling of 20265625020 in words is "twenty billion, two hundred sixty-five million, six hundred twenty-five thousand, twenty".