52245810 has 80 divisors (see below), whose sum is σ = 143251416. Its totient is φ = 13658112.

The previous prime is 52245803. The next prime is 52245821. The reversal of 52245810 is 1854225.

It is a happy number.

52245810 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It can be written as a sum of positive squares in 4 ways, for example, as 43046721 + 9199089 = 6561^2 + 3033^2 .

It is a super-2 number, since 2×52245810² = 5459249325112200, which contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (27).

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 39 ways as a sum of consecutive naturals, for example, 42322 + ... + 43538.

Almost surely, 2^52245810 is an apocalyptic number.

It is a practical number, because each smaller number is the sum of distinct divisors of 52245810, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (71625708).

52245810 is an abundant number, since it is smaller than the sum of its proper divisors (91005606).

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

52245810 is a wasteful number, since it uses less digits than its factorization.

52245810 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1289 (or 1280 counting only the distinct ones).

The product of its (nonzero) digits is 3200, while the sum is 27.

The square root of 52245810 is about 7228.1263132295. The cubic root of 52245810 is about 373.8383250796.

The spelling of 52245810 in words is "fifty-two million, two hundred forty-five thousand, eight hundred ten".