25132543 has 4 divisors (see below), whose sum is σ = 25228368. Its totient is φ = 25036720.

The previous prime is 25132529. The next prime is 25132553. The reversal of 25132543 is 34523152.

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

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-25132543 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 (25132553) 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, 47518 + ... + 48043.

It is an arithmetic number, because the mean of its divisors is an integer number (6307092).

Almost surely, 2^25132543 is an apocalyptic number.

25132543 is a deficient number, since it is larger than the sum of its proper divisors (95825).

25132543 is an equidigital number, since it uses as much as digits as its factorization.

25132543 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 95824.

The product of its digits is 3600, while the sum is 25.

The square root of 25132543 is about 5013.2367787688. The cubic root of 25132543 is about 292.9176074015.

Adding to 25132543 its reverse (34523152), we get a palindrome (59655695).

The spelling of 25132543 in words is "twenty-five million, one hundred thirty-two thousand, five hundred forty-three".