52666632 has 128 divisors (see below), whose sum is σ = 158256000. Its totient is φ = 16174080.

The previous prime is 52666631. The next prime is 52666637. The reversal of 52666632 is 23666625.

It is a Harshad number since it is a multiple of its sum of digits (36).

It is not an unprimeable number, because it can be changed into a prime (52666631) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 168108 + ... + 168420.

It is an arithmetic number, because the mean of its divisors is an integer number (1236375).

Almost surely, 2^52666632 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 52666632, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (79128000).

52666632 is an abundant number, since it is smaller than the sum of its proper divisors (105589368).

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

52666632 is a wasteful number, since it uses less digits than its factorization.

52666632 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 388 (or 378 counting only the distinct ones).

The product of its digits is 77760, while the sum is 36.

The square root of 52666632 is about 7257.1779639196. The cubic root of 52666632 is about 374.8393551918.

The spelling of 52666632 in words is "fifty-two million, six hundred sixty-six thousand, six hundred thirty-two".