23253543 has 6 divisors (see below), whose sum is σ = 33588464. Its totient is φ = 15502356.

The previous prime is 23253541. The next prime is 23253553. The reversal of 23253543 is 34535232.

It is not a de Polignac number, because 23253543 - 2¹ = 23253541 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (23253541) by changing a digit.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 1291855 + ... + 1291872.

Almost surely, 2^23253543 is an apocalyptic number.

23253543 is a deficient number, since it is larger than the sum of its proper divisors (10334921).

23253543 is a wasteful number, since it uses less digits than its factorization.

23253543 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2583733 (or 2583730 counting only the distinct ones).

The product of its digits is 10800, while the sum is 27.

The square root of 23253543 is about 4822.1927584865. The cubic root of 23253543 is about 285.4278707047.

Adding to 23253543 its reverse (34535232), we get a palindrome (57788775).

The spelling of 23253543 in words is "twenty-three million, two hundred fifty-three thousand, five hundred forty-three".