25349473 has 4 divisors (see below), whose sum is σ = 26451648. Its totient is φ = 24247300.

The previous prime is 25349459. The next prime is 25349483. The reversal of 25349473 is 37494352.

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 a de Polignac number, because none of the positive numbers 2^k-25349473 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (25349483) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 551053 + ... + 551098.

It is an arithmetic number, because the mean of its divisors is an integer number (6612912).

Almost surely, 2^25349473 is an apocalyptic number.

25349473 is a gapful number since it is divisible by the number (23) formed by its first and last digit.

It is an amenable number.

25349473 is a deficient number, since it is larger than the sum of its proper divisors (1102175).

25349473 is a wasteful number, since it uses less digits than its factorization.

25349473 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1102174.

The product of its digits is 90720, while the sum is 37.

The square root of 25349473 is about 5034.8260148688. The cubic root of 25349473 is about 293.7579609733.

The spelling of 25349473 in words is "twenty-five million, three hundred forty-nine thousand, four hundred seventy-three".