52820190 has 192 divisors, whose sum is σ = 161740800. Its totient is φ = 11860992.

The previous prime is 52820179. The next prime is 52820191. The reversal of 52820190 is 9102825.

It is a super-2 number, since 2×52820190² = 5579944943272200, which contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (52820191) by changing a digit.

It is a polite number, since it can be written in 95 ways as a sum of consecutive naturals, for example, 668571 + ... + 668649.

It is an arithmetic number, because the mean of its divisors is an integer number (842400).

Almost surely, 2^52820190 is an apocalyptic number.

It is a practical number, because each smaller number is the sum of distinct divisors of 52820190, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (80870400).

52820190 is an abundant number, since it is smaller than the sum of its proper divisors (108920610).

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

52820190 is a wasteful number, since it uses less digits than its factorization.

52820190 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 151 (or 148 counting only the distinct ones).

The product of its (nonzero) digits is 1440, while the sum is 27.

The square root of 52820190 is about 7267.7499957002. The cubic root of 52820190 is about 375.2033030944.

The spelling of 52820190 in words is "fifty-two million, eight hundred twenty thousand, one hundred ninety".