25142775 has 48 divisors (see below), whose sum is σ = 48163584. Its totient is φ = 11335680.

The previous prime is 25142771. The next prime is 25142783. The reversal of 25142775 is 57724152.

It is not a de Polignac number, because 25142775 - 2² = 25142771 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (25142771) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 43287 + ... + 43863.

It is an arithmetic number, because the mean of its divisors is an integer number (1003408).

Almost surely, 2^25142775 is an apocalyptic number.

25142775 is a gapful number since it is divisible by the number (25) formed by its first and last digit.

25142775 is a deficient number, since it is larger than the sum of its proper divisors (23020809).

25142775 is a wasteful number, since it uses less digits than its factorization.

25142775 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 680 (or 675 counting only the distinct ones).

The product of its digits is 19600, while the sum is 33.

The square root of 25142775 is about 5014.2571733009. The cubic root of 25142775 is about 292.9573530322.

The spelling of 25142775 in words is "twenty-five million, one hundred forty-two thousand, seven hundred seventy-five".