52290009 has 16 divisors (see below), whose sum is σ = 78560640. Its totient is φ = 34367760.

The previous prime is 52290001. The next prime is 52290013. The reversal of 52290009 is 90009225.

It is not a de Polignac number, because 52290009 - 2³ = 52290001 is a prime.

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

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

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 11722 + ... + 15555.

It is an arithmetic number, because the mean of its divisors is an integer number (4910040).

Almost surely, 2^52290009 is an apocalyptic number.

It is an amenable number.

52290009 is a deficient number, since it is larger than the sum of its proper divisors (26270631).

52290009 is a wasteful number, since it uses less digits than its factorization.

52290009 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 27357 (or 27351 counting only the distinct ones).

The product of its (nonzero) digits is 1620, while the sum is 27.

The square root of 52290009 is about 7231.1830982212. The cubic root of 52290009 is about 373.9437154950.

The spelling of 52290009 in words is "fifty-two million, two hundred ninety thousand, nine".