25434493 has 4 divisors (see below), whose sum is σ = 29068000. Its totient is φ = 21800988.

The previous prime is 25434491. The next prime is 25434517. The reversal of 25434493 is 39443452.

It is a happy number.

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 25434493 - 2¹ = 25434491 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 (25434491) 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, 1816743 + ... + 1816756.

It is an arithmetic number, because the mean of its divisors is an integer number (7267000).

Almost surely, 2^25434493 is an apocalyptic number.

It is an amenable number.

25434493 is a deficient number, since it is larger than the sum of its proper divisors (3633507).

25434493 is an equidigital number, since it uses as much as digits as its factorization.

25434493 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3633506.

The product of its digits is 51840, while the sum is 34.

The square root of 25434493 is about 5043.2621387352. The cubic root of 25434493 is about 294.0860076624.

It can be divided in two parts, 2543449 and 3, that added together give a palindrome (2543452).

The spelling of 25434493 in words is "twenty-five million, four hundred thirty-four thousand, four hundred ninety-three".