25275849 has 8 divisors (see below), whose sum is σ = 34863360. Its totient is φ = 16269456.

The previous prime is 25275841. The next prime is 25275851. The reversal of 25275849 is 94857252.

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 25275849 - 2³ = 25275841 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 25275849.

It is not an unprimeable number, because it can be changed into a prime (25275841) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 145177 + ... + 145350.

It is an arithmetic number, because the mean of its divisors is an integer number (4357920).

Almost surely, 2^25275849 is an apocalyptic number.

25275849 is a gapful number since it is divisible by the number (29) formed by its first and last digit.

It is an amenable number.

25275849 is a deficient number, since it is larger than the sum of its proper divisors (9587511).

25275849 is a wasteful number, since it uses less digits than its factorization.

25275849 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 290559.

The product of its digits is 201600, while the sum is 42.

The square root of 25275849 is about 5027.5092242581. The cubic root of 25275849 is about 293.4732922267.

The spelling of 25275849 in words is "twenty-five million, two hundred seventy-five thousand, eight hundred forty-nine".