24472561 has 2 divisors, whose sum is σ = 24472562. Its totient is φ = 24472560.

The previous prime is 24472559. The next prime is 24472579. The reversal of 24472561 is 16527442.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 24354225 + 118336 = 4935^2 + 344^2 .

It is a cyclic number.

It is not a de Polignac number, because 24472561 - 2¹ = 24472559 is a prime.

Together with 24472559, it forms a pair of twin primes.

It is a Chen prime.

It is not a weakly prime, because it can be changed into another prime (24472961) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 12236280 + 12236281.

It is an arithmetic number, because the mean of its divisors is an integer number (12236281).

Almost surely, 2^24472561 is an apocalyptic number.

It is an amenable number.

24472561 is a deficient number, since it is larger than the sum of its proper divisors (1).

24472561 is an equidigital number, since it uses as much as digits as its factorization.

24472561 is an evil number, because the sum of its binary digits is even.

The product of its digits is 13440, while the sum is 31.

The square root of 24472561 is about 4946.9749342401. The cubic root of 24472561 is about 290.3308194597.

The spelling of 24472561 in words is "twenty-four million, four hundred seventy-two thousand, five hundred sixty-one".