52205090 has 24 divisors (see below), whose sum is σ = 109312092. Its totient is φ = 17898720.

The previous prime is 52205089. The next prime is 52205107. The reversal of 52205090 is 9050225.

It is a happy number.

It can be written as a sum of positive squares in 2 ways, for example, as 45819361 + 6385729 = 6769^2 + 2527^2 .

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 52781 + ... + 53760.

Almost surely, 2^52205090 is an apocalyptic number.

52205090 is an abundant number, since it is smaller than the sum of its proper divisors (57107002).

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

52205090 is a wasteful number, since it uses less digits than its factorization.

52205090 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 106562 (or 106555 counting only the distinct ones).

The product of its (nonzero) digits is 900, while the sum is 23.

The square root of 52205090 is about 7225.3089899325. The cubic root of 52205090 is about 373.7411775563.

The spelling of 52205090 in words is "fifty-two million, two hundred five thousand, ninety".