25349455 has 4 divisors (see below), whose sum is σ = 30419352. Its totient is φ = 20279560.

The previous prime is 25349449. The next prime is 25349459. The reversal of 25349455 is 55494352.

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

It is not a de Polignac number, because 25349455 - 2⁹ = 25348943 is a prime.

It is a Duffinian number.

It is a plaindrome in base 11.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (25349459) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 2534941 + ... + 2534950.

It is an arithmetic number, because the mean of its divisors is an integer number (7604838).

Almost surely, 2^25349455 is an apocalyptic number.

25349455 is a deficient number, since it is larger than the sum of its proper divisors (5069897).

25349455 is an equidigital number, since it uses as much as digits as its factorization.

25349455 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5069896.

The product of its digits is 108000, while the sum is 37.

The square root of 25349455 is about 5034.8242273192. The cubic root of 25349455 is about 293.7578914433.

The spelling of 25349455 in words is "twenty-five million, three hundred forty-nine thousand, four hundred fifty-five".