53531738920 has 32 divisors (see below), whose sum is σ = 131396087520. Its totient is φ = 19466086720.

The previous prime is 53531738893. The next prime is 53531738921. The reversal of 53531738920 is 2983713535.

53531738920 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is not an unprimeable number, because it can be changed into a prime (53531738921) 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, 60831082 + ... + 60831961.

It is an arithmetic number, because the mean of its divisors is an integer number (4106127735).

Almost surely, 2^53531738920 is an apocalyptic number.

It is an amenable number.

53531738920 is an abundant number, since it is smaller than the sum of its proper divisors (77864348600).

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

53531738920 is a wasteful number, since it uses less digits than its factorization.

53531738920 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 121663065 (or 121663061 counting only the distinct ones).

The product of its (nonzero) digits is 680400, while the sum is 46.

The spelling of 53531738920 in words is "fifty-three billion, five hundred thirty-one million, seven hundred thirty-eight thousand, nine hundred twenty".