5625000020 has 12 divisors (see below), whose sum is σ = 11812500084. Its totient is φ = 2250000000.

The previous prime is 5625000013. The next prime is 5625000047. The reversal of 5625000020 is 200005265.

It is a happy number.

It can be written as a sum of positive squares in 2 ways, for example, as 1281926416 + 4343073604 = 35804^2 + 65902^2 .

It is a Harshad number since it is a multiple of its sum of digits (20), and also a Moran number because the ratio is a prime number: 281250001 = 5625000020 / (5 + 6 + 2 + 5 + 0 + 0 + 0 + 0 + 2 + 0).

It is a junction number, because it is equal to n+sod(n) for n = 5624999956 and 5625000001.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 140624981 + ... + 140625020.

It is an arithmetic number, because the mean of its divisors is an integer number (984375007).

Almost surely, 2^5625000020 is an apocalyptic number.

It is an amenable number.

5625000020 is an abundant number, since it is smaller than the sum of its proper divisors (6187500064).

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

5625000020 is a wasteful number, since it uses less digits than its factorization.

5625000020 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 281250010 (or 281250008 counting only the distinct ones).

The product of its (nonzero) digits is 600, while the sum is 20.

The square root of 5625000020 is about 75000.0001333333. Note that the first 3 decimals coincide. The cubic root of 5625000020 is about 1778.4466543528.

Subtracting from 5625000020 its sum of digits (20), we obtain a square (5625000000 = 75000²).

Adding to 5625000020 its reverse (200005265), we get a palindrome (5825005285).

The spelling of 5625000020 in words is "five billion, six hundred twenty-five million, twenty", and thus it is an aban number.