52791816 has 192 divisors, whose sum is σ = 172368000. Its totient is φ = 13453440.

The previous prime is 52791799. The next prime is 52791833. The reversal of 52791816 is 61819725.

It is an interprime number because it is at equal distance from previous prime (52791799) and next prime (52791833).

Its product of digits (30240) is a multiple of the sum of its prime factors (105).

It is an unprimeable number.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 996046 + ... + 996098.

It is an arithmetic number, because the mean of its divisors is an integer number (897750).

Almost surely, 2^52791816 is an apocalyptic number.

52791816 is a gapful number since it is divisible by the number (56) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 52791816, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (86184000).

52791816 is an abundant number, since it is smaller than the sum of its proper divisors (119576184).

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

52791816 is a wasteful number, since it uses less digits than its factorization.

52791816 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 105 (or 76 counting only the distinct ones).

The product of its digits is 30240, while the sum is 39.

The square root of 52791816 is about 7265.7976850446. The cubic root of 52791816 is about 375.1361070381.

The spelling of 52791816 in words is "fifty-two million, seven hundred ninety-one thousand, eight hundred sixteen".