25487349 has 4 divisors (see below), whose sum is σ = 33983136. Its totient is φ = 16991564.

The previous prime is 25487327. The next prime is 25487377. The reversal of 25487349 is 94378452.

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 25487349 - 2⁷ = 25487221 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 25487349.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (25487309) 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, 4247889 + ... + 4247894.

It is an arithmetic number, because the mean of its divisors is an integer number (8495784).

Almost surely, 2^25487349 is an apocalyptic number.

It is an amenable number.

25487349 is a deficient number, since it is larger than the sum of its proper divisors (8495787).

25487349 is an equidigital number, since it uses as much as digits as its factorization.

25487349 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 8495786.

The product of its digits is 241920, while the sum is 42.

The square root of 25487349 is about 5048.4996781222. The cubic root of 25487349 is about 294.2895823231.

The spelling of 25487349 in words is "twenty-five million, four hundred eighty-seven thousand, three hundred forty-nine".