25248458909 has 8 divisors (see below), whose sum is σ = 26958921792. Its totient is φ = 23589054720.

The previous prime is 25248458903. The next prime is 25248458953. The reversal of 25248458909 is 90985484252.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 25248458909 - 2¹² = 25248454813 is a prime.

It is a super-2 number, since 2×25248458909² (a number of 22 digits) contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (25248458903) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 12763652 + ... + 12765629.

It is an arithmetic number, because the mean of its divisors is an integer number (3369865224).

Almost surely, 2^25248458909 is an apocalyptic number.

It is an amenable number.

25248458909 is a deficient number, since it is larger than the sum of its proper divisors (1710462883).

25248458909 is a wasteful number, since it uses less digits than its factorization.

25248458909 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 25529347.

The product of its (nonzero) digits is 8294400, while the sum is 56.

The spelling of 25248458909 in words is "twenty-five billion, two hundred forty-eight million, four hundred fifty-eight thousand, nine hundred nine".