20132550542 has 24 divisors (see below), whose sum is σ = 32908873896. Its totient is φ = 9232737696.

The previous prime is 20132550523. The next prime is 20132550547. The reversal of 20132550542 is 24505523102.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (20132550547) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 136628 + ... + 242759.

It is an arithmetic number, because the mean of its divisors is an integer number (1371203079).

Almost surely, 2^20132550542 is an apocalyptic number.

20132550542 is a deficient number, since it is larger than the sum of its proper divisors (12776323354).

20132550542 is a wasteful number, since it uses less digits than its factorization.

20132550542 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 379572 (or 379559 counting only the distinct ones).

The product of its (nonzero) digits is 12000, while the sum is 29.

The spelling of 20132550542 in words is "twenty billion, one hundred thirty-two million, five hundred fifty thousand, five hundred forty-two".