25275775 has 24 divisors (see below), whose sum is σ = 36212960. Its totient is φ = 17141760.

The previous prime is 25275763. The next prime is 25275779. The reversal of 25275775 is 57757252.

It is a happy number.

It is not a de Polignac number, because 25275775 - 2¹¹ = 25273727 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (25275779) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 16231 + ... + 17719.

Almost surely, 2^25275775 is an apocalyptic number.

25275775 is a gapful number since it is divisible by the number (25) formed by its first and last digit.

25275775 is a deficient number, since it is larger than the sum of its proper divisors (10937185).

25275775 is a wasteful number, since it uses less digits than its factorization.

25275775 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1603 (or 1598 counting only the distinct ones).

The product of its digits is 171500, while the sum is 40.

The square root of 25275775 is about 5027.5018647436. The cubic root of 25275775 is about 293.4730058263.

The spelling of 25275775 in words is "twenty-five million, two hundred seventy-five thousand, seven hundred seventy-five".