24955628209 has 2 divisors, whose sum is σ = 24955628210. Its totient is φ = 24955628208.

The previous prime is 24955628197. The next prime is 24955628231. The reversal of 24955628209 is 90282655942.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 24779482225 + 176145984 = 157415^2 + 13272^2 .

It is a cyclic number.

It is not a de Polignac number, because 24955628209 - 2⁷ = 24955628081 is a prime.

It is not a weakly prime, because it can be changed into another prime (24955628609) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 12477814104 + 12477814105.

It is an arithmetic number, because the mean of its divisors is an integer number (12477814105).

Almost surely, 2^24955628209 is an apocalyptic number.

It is an amenable number.

24955628209 is a deficient number, since it is larger than the sum of its proper divisors (1).

24955628209 is an equidigital number, since it uses as much as digits as its factorization.

24955628209 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 3110400, while the sum is 52.

The spelling of 24955628209 in words is "twenty-four billion, nine hundred fifty-five million, six hundred twenty-eight thousand, two hundred nine".