52287639552 has 156 divisors (see below), whose sum is σ = 152741344860. Its totient is φ = 17232297984.

The previous prime is 52287639541. The next prime is 52287639553. The reversal of 52287639552 is 25593678225.

It is a happy number.

52287639552 is a `hidden beast` number, since 5 + 2 + 2 + 87 + 6 + 3 + 9 + 552 = 666.

It can be written as a sum of positive squares in 2 ways, for example, as 22890479616 + 29397159936 = 151296^2 + 171456^2 .

It is not an unprimeable number, because it can be changed into a prime (52287639553) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 3272928 + ... + 3288864.

It is an arithmetic number, because the mean of its divisors is an integer number (979111185).

Almost surely, 2^52287639552 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 52287639552, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (76370672430).

52287639552 is an abundant number, since it is smaller than the sum of its proper divisors (100453705308).

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

52287639552 is a wasteful number, since it uses less digits than its factorization.

52287639552 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 16056 (or 16031 counting only the distinct ones).

The product of its digits is 9072000, while the sum is 54.

The spelling of 52287639552 in words is "fifty-two billion, two hundred eighty-seven million, six hundred thirty-nine thousand, five hundred fifty-two".