52290000 has 300 divisors, whose sum is σ = 211507296. Its totient is φ = 11808000.

The previous prime is 52289983. The next prime is 52290001. The reversal of 52290000 is 9225.

52290000 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a tau number, because it is divible by the number of its divisors (300).

It is a Harshad number since it is a multiple of its sum of digits (18).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (52290001) by changing a digit.

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 59 ways as a sum of consecutive naturals, for example, 629959 + ... + 630041.

Almost surely, 2^52290000 is an apocalyptic number.

52290000 is a gapful number since it is divisible by the number (50) 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 52290000, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (105753648).

52290000 is an abundant number, since it is smaller than the sum of its proper divisors (159217296).

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

52290000 is a wasteful number, since it uses less digits than its factorization.

52290000 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 124 (or 100 counting only the distinct ones).

The product of its (nonzero) digits is 180, while the sum is 18.

The square root of 52290000 is about 7231.1824759164. The cubic root of 52290000 is about 373.9436940410.

Adding to 52290000 its reverse (9225), we get a palindrome (52299225).

The spelling of 52290000 in words is "fifty-two million, two hundred ninety thousand".