25505475 has 12 divisors (see below), whose sum is σ = 42169176. Its totient is φ = 13602880.

The previous prime is 25505453. The next prime is 25505479. The reversal of 25505475 is 57450552.

It is not a de Polignac number, because 25505475 - 2⁶ = 25505411 is a prime.

It is not an unprimeable number, because it can be changed into a prime (25505479) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 169962 + ... + 170111.

It is an arithmetic number, because the mean of its divisors is an integer number (3514098).

Almost surely, 2^25505475 is an apocalyptic number.

25505475 is a gapful number since it is divisible by the number (25) formed by its first and last digit.

25505475 is a deficient number, since it is larger than the sum of its proper divisors (16663701).

25505475 is a wasteful number, since it uses less digits than its factorization.

25505475 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 340086 (or 340081 counting only the distinct ones).

The product of its (nonzero) digits is 35000, while the sum is 33.

The square root of 25505475 is about 5050.2945458656. The cubic root of 25505475 is about 294.3593297224.

It can be divided in two parts, 2550547 and 5, that added together give a palindrome (2550552).

The spelling of 25505475 in words is "twenty-five million, five hundred five thousand, four hundred seventy-five".