24591601 has 4 divisors (see below), whose sum is σ = 24994804. Its totient is φ = 24188400.

The previous prime is 24591563. The next prime is 24591607. The reversal of 24591601 is 10619542.

It is the 2025-th star number.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 11458225 + 13133376 = 3385^2 + 3624^2 .

It is a cyclic number.

It is not a de Polignac number, because 24591601 - 2⁷ = 24591473 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 24591601.

It is not an unprimeable number, because it can be changed into a prime (24591607) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 201510 + ... + 201631.

It is an arithmetic number, because the mean of its divisors is an integer number (6248701).

Almost surely, 2^24591601 is an apocalyptic number.

It is an amenable number.

24591601 is a deficient number, since it is larger than the sum of its proper divisors (403203).

24591601 is an equidigital number, since it uses as much as digits as its factorization.

24591601 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 403202.

The product of its (nonzero) digits is 2160, while the sum is 28.

The square root of 24591601 is about 4958.9919338511. The cubic root of 24591601 is about 290.8008028866.

The spelling of 24591601 in words is "twenty-four million, five hundred ninety-one thousand, six hundred one".