20005250452 has 48 divisors (see below), whose sum is σ = 38410811712. Its totient is φ = 9041281280.

The previous prime is 20005250437. The next prime is 20005250459. The reversal of 20005250452 is 25405250002.

It is a happy number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (20005250459) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 13398618 + ... + 13400110.

It is an arithmetic number, because the mean of its divisors is an integer number (800225244).

Almost surely, 2^20005250452 is an apocalyptic number.

20005250452 is a gapful number since it is divisible by the number (22) formed by its first and last digit.

It is an amenable number.

20005250452 is a deficient number, since it is larger than the sum of its proper divisors (18405561260).

20005250452 is a wasteful number, since it uses less digits than its factorization.

20005250452 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3048 (or 3046 counting only the distinct ones).

The product of its (nonzero) digits is 4000, while the sum is 25.

The spelling of 20005250452 in words is "twenty billion, five million, two hundred fifty thousand, four hundred fifty-two".