20503527504 has 40 divisors (see below), whose sum is σ = 54399003360. Its totient is φ = 6649792128.

The previous prime is 20503527497. The next prime is 20503527521. The reversal of 20503527504 is 40572530502.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 5770614 + ... + 5774165.

It is an arithmetic number, because the mean of its divisors is an integer number (1359975084).

Almost surely, 2^20503527504 is an apocalyptic number.

20503527504 is a gapful number since it is divisible by the number (24) formed by its first and last digit.

It is an amenable number.

20503527504 is an abundant number, since it is smaller than the sum of its proper divisors (33895475856).

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

20503527504 is a wasteful number, since it uses less digits than its factorization.

20503527504 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 11544827 (or 11544821 counting only the distinct ones).

The product of its (nonzero) digits is 42000, while the sum is 33.

The spelling of 20503527504 in words is "twenty billion, five hundred three million, five hundred twenty-seven thousand, five hundred four".