25275387 has 8 divisors (see below), whose sum is σ = 34048336. Its totient is φ = 16676352.

The previous prime is 25275373. The next prime is 25275389. The reversal of 25275387 is 78357252.

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

It is not a de Polignac number, because 25275387 - 2¹² = 25271291 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (25275389) 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, 43138 + ... + 43719.

It is an arithmetic number, because the mean of its divisors is an integer number (4256042).

Almost surely, 2^25275387 is an apocalyptic number.

25275387 is a deficient number, since it is larger than the sum of its proper divisors (8772949).

25275387 is an equidigital number, since it uses as much as digits as its factorization.

25275387 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 86957.

The product of its digits is 117600, while the sum is 39.

The square root of 25275387 is about 5027.4632768425. The cubic root of 25275387 is about 293.4715041498.

The spelling of 25275387 in words is "twenty-five million, two hundred seventy-five thousand, three hundred eighty-seven".