20425003020 has 36 divisors (see below), whose sum is σ = 61955843040. Its totient is φ = 5446667424.

The previous prime is 20425003019. The next prime is 20425003031. The reversal of 20425003020 is 2030052402.

It is a tau number, because it is divible by the number of its divisors (36).

It is a Harshad number since it is a multiple of its sum of digits (18).

It is a junction number, because it is equal to n+sod(n) for n = 20425002984 and 20425003002.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 56735940 + ... + 56736299.

It is an arithmetic number, because the mean of its divisors is an integer number (1720995640).

Almost surely, 2^20425003020 is an apocalyptic number.

20425003020 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

20425003020 is an abundant number, since it is smaller than the sum of its proper divisors (41530840020).

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

20425003020 is a wasteful number, since it uses less digits than its factorization.

20425003020 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 113472254 (or 113472249 counting only the distinct ones).

The product of its (nonzero) digits is 480, while the sum is 18.

Adding to 20425003020 its reverse (2030052402), we get a palindrome (22455055422).

The spelling of 20425003020 in words is "twenty billion, four hundred twenty-five million, three thousand, twenty".