52171776 has 220 divisors, whose sum is σ = 169417908. Its totient is φ = 15925248.

The previous prime is 52171747. The next prime is 52171789. The reversal of 52171776 is 67717125.

It can be written as a sum of positive squares in 2 ways, for example, as 43877376 + 8294400 = 6624^2 + 2880^2 .

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

It is a self number, because there is not a number n which added to its sum of digits gives 52171776.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (7) of ones.

It is a polite number, since it can be written in 19 ways as a sum of consecutive naturals, for example, 1410030 + ... + 1410066.

Almost surely, 2^52171776 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 52171776, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (84708954).

52171776 is an abundant number, since it is smaller than the sum of its proper divisors (117246132).

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

52171776 is a wasteful number, since it uses less digits than its factorization.

52171776 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 86 (or 59 counting only the distinct ones).

The product of its digits is 20580, while the sum is 36.

The square root of 52171776 is about 7223.0032534950. The cubic root of 52171776 is about 373.6616612808.

The spelling of 52171776 in words is "fifty-two million, one hundred seventy-one thousand, seven hundred seventy-six".