24742253 has 4 divisors (see below), whose sum is σ = 24760800. Its totient is φ = 24723708.

The previous prime is 24742213. The next prime is 24742261. The reversal of 24742253 is 35224742.

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 24742253 - 2⁶ = 24742189 is a prime.

It is a super-2 number, since 2×24742253² = 1224358167032018, which contains 22 as substring.

It is a Duffinian number.

It is a Curzon number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (24742213) 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, 7103 + ... + 9996.

It is an arithmetic number, because the mean of its divisors is an integer number (6190200).

Almost surely, 2^24742253 is an apocalyptic number.

It is an amenable number.

24742253 is a deficient number, since it is larger than the sum of its proper divisors (18547).

24742253 is a wasteful number, since it uses less digits than its factorization.

24742253 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 18546.

The product of its digits is 13440, while the sum is 29.

The square root of 24742253 is about 4974.1585218004. The cubic root of 24742253 is about 291.3934247883.

Adding to 24742253 its reverse (35224742), we get a palindrome (59966995).

The spelling of 24742253 in words is "twenty-four million, seven hundred forty-two thousand, two hundred fifty-three".