24998919953 has 4 divisors (see below), whose sum is σ = 28570194240. Its totient is φ = 21427645668.

The previous prime is 24998919931. The next prime is 24998919961. The reversal of 24998919953 is 35991989942.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 24998919953 - 2⁶ = 24998919889 is a prime.

It is a Curzon number.

It is not an unprimeable number, because it can be changed into a prime (24998919853) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1785637133 + ... + 1785637146.

It is an arithmetic number, because the mean of its divisors is an integer number (7142548560).

Almost surely, 2^24998919953 is an apocalyptic number.

It is an amenable number.

24998919953 is a deficient number, since it is larger than the sum of its proper divisors (3571274287).

24998919953 is an equidigital number, since it uses as much as digits as its factorization.

24998919953 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3571274286.

The product of its digits is 56687040, while the sum is 68.

The spelling of 24998919953 in words is "twenty-four billion, nine hundred ninety-eight million, nine hundred nineteen thousand, nine hundred fifty-three".