20050142520 has 32 divisors (see below), whose sum is σ = 60150427920. Its totient is φ = 5346704640.

The previous prime is 20050142509. The next prime is 20050142527. The reversal of 20050142520 is 2524105002.

It is a happy number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (20050142527) 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, 83542141 + ... + 83542380.

Almost surely, 2^20050142520 is an apocalyptic number.

20050142520 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

20050142520 is an abundant number, since it is smaller than the sum of its proper divisors (40100285400).

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

20050142520 is a wasteful number, since it uses less digits than its factorization.

20050142520 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 167084535 (or 167084531 counting only the distinct ones).

The product of its (nonzero) digits is 800, while the sum is 21.

Adding to 20050142520 its reverse (2524105002), we get a palindrome (22574247522).

The spelling of 20050142520 in words is "twenty billion, fifty million, one hundred forty-two thousand, five hundred twenty".