52816890 has 64 divisors (see below), whose sum is σ = 145852416. Its totient is φ = 11990592.

The previous prime is 52816889. The next prime is 52816927. The reversal of 52816890 is 9861825.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 33459 + ... + 35001.

It is an arithmetic number, because the mean of its divisors is an integer number (2278944).

Almost surely, 2^52816890 is an apocalyptic number.

It is a practical number, because each smaller number is the sum of distinct divisors of 52816890, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (72926208).

52816890 is an abundant number, since it is smaller than the sum of its proper divisors (93035526).

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

52816890 is a wasteful number, since it uses less digits than its factorization.

52816890 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1723.

The product of its (nonzero) digits is 34560, while the sum is 39.

The square root of 52816890 is about 7267.5229617800. The cubic root of 52816890 is about 375.1954891840.

The spelling of 52816890 in words is "fifty-two million, eight hundred sixteen thousand, eight hundred ninety".