20505502532 has 24 divisors (see below), whose sum is σ = 36156782592. Its totient is φ = 10175244800.

The previous prime is 20505502529. The next prime is 20505502553. The reversal of 20505502532 is 23520550502.

It is a super-2 number, since 2×20505502532² (a number of 21 digits) contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 20505502495 and 20505502504.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 298148 + ... + 360420.

It is an arithmetic number, because the mean of its divisors is an integer number (1506532608).

Almost surely, 2^20505502532 is an apocalyptic number.

It is an amenable number.

20505502532 is a deficient number, since it is larger than the sum of its proper divisors (15651280060).

20505502532 is a wasteful number, since it uses less digits than its factorization.

20505502532 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 62899 (or 62897 counting only the distinct ones).

The product of its (nonzero) digits is 15000, while the sum is 29.

The spelling of 20505502532 in words is "twenty billion, five hundred five million, five hundred two thousand, five hundred thirty-two".