24999999953 has 4 divisors (see below), whose sum is σ = 25037936880. Its totient is φ = 24962063028.

The previous prime is 24999999931. The next prime is 24999999991. The reversal of 24999999953 is 35999999942.

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 24999999953 - 2¹⁶ = 24999934417 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (24999999253) 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 3 ways as a sum of consecutive naturals, for example, 18967475 + ... + 18968792.

It is an arithmetic number, because the mean of its divisors is an integer number (6259484220).

Almost surely, 2^24999999953 is an apocalyptic number.

It is an amenable number.

24999999953 is a deficient number, since it is larger than the sum of its proper divisors (37936927).

24999999953 is an equidigital number, since it uses as much as digits as its factorization.

24999999953 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 37936926.

The product of its digits is 573956280, while the sum is 77.

It can be divided in two parts, 249999999 and 53, that added together give a palindrome (250000052).

The spelling of 24999999953 in words is "twenty-four billion, nine hundred ninety-nine million, nine hundred ninety-nine thousand, nine hundred fifty-three".