53309557740 has 48 divisors (see below), whose sum is σ = 149359230720. Its totient is φ = 14207075520.

The previous prime is 53309557687. The next prime is 53309557771. The reversal of 53309557740 is 4775590335.

It is a self number, because there is not a number n which added to its sum of digits gives 53309557740.

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, 177256 + ... + 371535.

It is an arithmetic number, because the mean of its divisors is an integer number (3111650640).

Almost surely, 2^53309557740 is an apocalyptic number.

It is an amenable number.

53309557740 is an abundant number, since it is smaller than the sum of its proper divisors (96049672980).

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

53309557740 is a wasteful number, since it uses less digits than its factorization.

53309557740 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 550422 (or 550420 counting only the distinct ones).

The product of its (nonzero) digits is 1984500, while the sum is 48.

The spelling of 53309557740 in words is "fifty-three billion, three hundred nine million, five hundred fifty-seven thousand, seven hundred forty".