25275705 has 32 divisors (see below), whose sum is σ = 49776384. Its totient is φ = 10665216.

The previous prime is 25275703. The next prime is 25275709. The reversal of 25275705 is 50757252.

It is not a de Polignac number, because 25275705 - 2¹ = 25275703 is a prime.

It is a super-2 number, since 2×25275705² = 1277722526494050, which contains 22 as substring.

It is a Curzon number.

It is not an unprimeable number, because it can be changed into a prime (25275703) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 7894 + ... + 10623.

It is an arithmetic number, because the mean of its divisors is an integer number (1555512).

Almost surely, 2^25275705 is an apocalyptic number.

It is an amenable number.

25275705 is a deficient number, since it is larger than the sum of its proper divisors (24500679).

25275705 is a wasteful number, since it uses less digits than its factorization.

25275705 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 18545.

The product of its (nonzero) digits is 24500, while the sum is 33.

The square root of 25275705 is about 5027.4949030307. The cubic root of 25275705 is about 293.4727349064.

It can be divided in two parts, 252 and 75705, that added together give a palindrome (75957).

The spelling of 25275705 in words is "twenty-five million, two hundred seventy-five thousand, seven hundred five".