25313473 has 4 divisors (see below), whose sum is σ = 25323988. Its totient is φ = 25302960.

The previous prime is 25313447. The next prime is 25313503. The reversal of 25313473 is 37431352.

25313473 is nontrivially palindromic in base 14.

It is a semiprime because it is the product of two primes, and also a brilliant number, because the two primes have the same length.

It can be written as a sum of positive squares in 2 ways, for example, as 12439729 + 12873744 = 3527^2 + 3588^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-25313473 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (25319473) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (7) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 343 + ... + 7123.

It is an arithmetic number, because the mean of its divisors is an integer number (6330997).

Almost surely, 2^25313473 is an apocalyptic number.

It is an amenable number.

25313473 is a deficient number, since it is larger than the sum of its proper divisors (10515).

25313473 is an equidigital number, since it uses as much as digits as its factorization.

25313473 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 10514.

The product of its digits is 7560, while the sum is 28.

The square root of 25313473 is about 5031.2496459627. The cubic root of 25313473 is about 293.6188351789.

The spelling of 25313473 in words is "twenty-five million, three hundred thirteen thousand, four hundred seventy-three".