24561221039 has 2 divisors, whose sum is σ = 24561221040. Its totient is φ = 24561221038.

The previous prime is 24561221023. The next prime is 24561221051. The reversal of 24561221039 is 93012216542.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 24561221039 - 2⁴ = 24561221023 is a prime.

It is a Sophie Germain prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (24561221089) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 12280610519 + 12280610520.

It is an arithmetic number, because the mean of its divisors is an integer number (12280610520).

Almost surely, 2^24561221039 is an apocalyptic number.

24561221039 is a deficient number, since it is larger than the sum of its proper divisors (1).

24561221039 is an equidigital number, since it uses as much as digits as its factorization.

24561221039 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 25920, while the sum is 35.

The spelling of 24561221039 in words is "twenty-four billion, five hundred sixty-one million, two hundred twenty-one thousand, thirty-nine".