52155768 has 64 divisors (see below), whose sum is σ = 149679360. Its totient is φ = 14835456.

The previous prime is 52155751. The next prime is 52155773. The reversal of 52155768 is 86755125.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 46996 + ... + 48092.

It is an arithmetic number, because the mean of its divisors is an integer number (2338740).

Almost surely, 2^52155768 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 52155768, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (74839680).

52155768 is an abundant number, since it is smaller than the sum of its proper divisors (97523592).

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

52155768 is a wasteful number, since it uses less digits than its factorization.

52155768 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1396 (or 1392 counting only the distinct ones).

The product of its digits is 84000, while the sum is 39.

The square root of 52155768 is about 7221.8950421617. The cubic root of 52155768 is about 373.6234401823.

The spelling of 52155768 in words is "fifty-two million, one hundred fifty-five thousand, seven hundred sixty-eight".