52157535648 has 192 divisors, whose sum is σ = 144497001600. Its totient is φ = 16449269760.

The previous prime is 52157535571. The next prime is 52157535667. The reversal of 52157535648 is 84653575125.

It is a self number, because there is not a number n which added to its sum of digits gives 52157535648.

It is an unprimeable number.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 71155890 + ... + 71156622.

It is an arithmetic number, because the mean of its divisors is an integer number (752588550).

Almost surely, 2^52157535648 is an apocalyptic number.

52157535648 is a gapful number since it is divisible by the number (58) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 52157535648, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (72248500800).

52157535648 is an abundant number, since it is smaller than the sum of its proper divisors (92339465952).

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

52157535648 is a wasteful number, since it uses less digits than its factorization.

52157535648 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1255 (or 1247 counting only the distinct ones).

The product of its digits is 5040000, while the sum is 51.

The spelling of 52157535648 in words is "fifty-two billion, one hundred fifty-seven million, five hundred thirty-five thousand, six hundred forty-eight".