52813890 has 64 divisors (see below), whose sum is σ = 144144000. Its totient is φ = 13753152.

The previous prime is 52813841. The next prime is 52813903. The reversal of 52813890 is 9831825.

It is an unprimeable number.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 9336 + ... + 13884.

It is an arithmetic number, because the mean of its divisors is an integer number (2252250).

Almost surely, 2^52813890 is an apocalyptic number.

It is a practical number, because each smaller number is the sum of distinct divisors of 52813890, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (72072000).

52813890 is an abundant number, since it is smaller than the sum of its proper divisors (91330110).

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

52813890 is a wasteful number, since it uses less digits than its factorization.

52813890 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4608 (or 4602 counting only the distinct ones).

The product of its (nonzero) digits is 17280, while the sum is 36.

The square root of 52813890 is about 7267.3165611524. The cubic root of 52813890 is about 375.1883853467.

The spelling of 52813890 in words is "fifty-two million, eight hundred thirteen thousand, eight hundred ninety".