25512427 has 4 divisors (see below), whose sum is σ = 27013176. Its totient is φ = 24011680.

The previous prime is 25512413. The next prime is 25512433. The reversal of 25512427 is 72421552.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 25512427 - 2¹⁵ = 25479659 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 25512395 and 25512404.

It is not an unprimeable number, because it can be changed into a prime (25512407) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 750349 + ... + 750382.

It is an arithmetic number, because the mean of its divisors is an integer number (6753294).

Almost surely, 2^25512427 is an apocalyptic number.

25512427 is a deficient number, since it is larger than the sum of its proper divisors (1500749).

25512427 is a wasteful number, since it uses less digits than its factorization.

25512427 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1500748.

The product of its digits is 5600, while the sum is 28.

The square root of 25512427 is about 5050.9827756586. The cubic root of 25512427 is about 294.3860716953.

Adding to 25512427 its reverse (72421552), we get a palindrome (97933979).

The spelling of 25512427 in words is "twenty-five million, five hundred twelve thousand, four hundred twenty-seven".