53391775530 has 32 divisors (see below), whose sum is σ = 128156277888. Its totient is φ = 14236027200.

The previous prime is 53391775519. The next prime is 53391775583. The reversal of 53391775530 is 3557719335.

It is a self number, because there is not a number n which added to its sum of digits gives 53391775530.

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, 142260 + ... + 356400.

It is an arithmetic number, because the mean of its divisors is an integer number (4004883684).

Almost surely, 2^53391775530 is an apocalyptic number.

53391775530 is an abundant number, since it is smaller than the sum of its proper divisors (74764502358).

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

53391775530 is a wasteful number, since it uses less digits than its factorization.

53391775530 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 222462.

The product of its (nonzero) digits is 1488375, while the sum is 48.

The spelling of 53391775530 in words is "fifty-three billion, three hundred ninety-one million, seven hundred seventy-five thousand, five hundred thirty".