252515106009 has 12 divisors (see below), whose sum is σ = 370926145200. Its totient is φ = 165490125624.

The previous prime is 252515105987. The next prime is 252515106017. The reversal of 252515106009 is 900601515252.

252515106009 is a `hidden beast` number, since 2 + 5 + 25 + 15 + 10 + 600 + 9 = 666.

It is not a de Polignac number, because 252515106009 - 2¹² = 252515101913 is a prime.

It is a Curzon number.

It is not an unprimeable number, because it can be changed into a prime (252515106049) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 237772639 + ... + 237773700.

It is an arithmetic number, because the mean of its divisors is an integer number (30910512100).

Almost surely, 2^252515106009 is an apocalyptic number.

It is an amenable number.

252515106009 is a deficient number, since it is larger than the sum of its proper divisors (118411039191).

252515106009 is a wasteful number, since it uses less digits than its factorization.

252515106009 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 475546404 (or 475546401 counting only the distinct ones).

The product of its (nonzero) digits is 27000, while the sum is 36.

The spelling of 252515106009 in words is "two hundred fifty-two billion, five hundred fifteen million, one hundred six thousand, nine".