24999973 has 2 divisors, whose sum is σ = 24999974. Its totient is φ = 24999972.

The previous prime is 24999971. The next prime is 24999983. The reversal of 24999973 is 37999942.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 23444964 + 1555009 = 4842^2 + 1247^2 .

It is a cyclic number.

It is not a de Polignac number, because 24999973 - 2¹ = 24999971 is a prime.

Together with 24999971, it forms a pair of twin primes.

It is a self number, because there is not a number n which added to its sum of digits gives 24999973.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (24999971) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 12499986 + 12499987.

It is an arithmetic number, because the mean of its divisors is an integer number (12499987).

Almost surely, 2^24999973 is an apocalyptic number.

It is an amenable number.

24999973 is a deficient number, since it is larger than the sum of its proper divisors (1).

24999973 is an equidigital number, since it uses as much as digits as its factorization.

24999973 is an evil number, because the sum of its binary digits is even.

The product of its digits is 1102248, while the sum is 52.

The square root of 24999973 is about 4999.9972999993. The cubic root of 24999973 is about 292.4016685566.

The spelling of 24999973 in words is "twenty-four million, nine hundred ninety-nine thousand, nine hundred seventy-three".