52788366 has 48 divisors (see below), whose sum is σ = 121945824. Its totient is φ = 16445952.

The previous prime is 52788347. The next prime is 52788367. The reversal of 52788366 is 66388725.

It is a super-2 number, since 2×52788366² = 5573223169899912, which contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (52788367) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 50586 + ... + 51618.

It is an arithmetic number, because the mean of its divisors is an integer number (2540538).

Almost surely, 2^52788366 is an apocalyptic number.

It is a practical number, because each smaller number is the sum of distinct divisors of 52788366, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (60972912).

52788366 is an abundant number, since it is smaller than the sum of its proper divisors (69157458).

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

52788366 is a wasteful number, since it uses less digits than its factorization.

52788366 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1225 (or 1222 counting only the distinct ones).

The product of its digits is 483840, while the sum is 45.

The square root of 52788366 is about 7265.5602674536. The cubic root of 52788366 is about 375.1279350154.

The spelling of 52788366 in words is "fifty-two million, seven hundred eighty-eight thousand, three hundred sixty-six".