53133649820 has 48 divisors (see below), whose sum is σ = 112503420288. Its totient is φ = 21077998080.

The previous prime is 53133649819. The next prime is 53133649897. The reversal of 53133649820 is 2894633135.

53133649820 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 3013430 + ... + 3031010.

It is an arithmetic number, because the mean of its divisors is an integer number (2343821256).

Almost surely, 2^53133649820 is an apocalyptic number.

It is an amenable number.

53133649820 is an abundant number, since it is smaller than the sum of its proper divisors (59369770468).

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

53133649820 is a wasteful number, since it uses less digits than its factorization.

53133649820 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 18830 (or 18828 counting only the distinct ones).

The product of its (nonzero) digits is 466560, while the sum is 44.

The spelling of 53133649820 in words is "fifty-three billion, one hundred thirty-three million, six hundred forty-nine thousand, eight hundred twenty".