25263117 has 16 divisors (see below), whose sum is σ = 40829760. Its totient is φ = 15310800.

The previous prime is 25263113. The next prime is 25263137. The reversal of 25263117 is 71136252.

It is a happy number.

25263117 is a `hidden beast` number, since 25 + 2 + 631 + 1 + 7 = 666.

It is not a de Polignac number, because 25263117 - 2² = 25263113 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (27).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (25263113) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 42234 + ... + 42827.

It is an arithmetic number, because the mean of its divisors is an integer number (2551860).

Almost surely, 2^25263117 is an apocalyptic number.

25263117 is a gapful number since it is divisible by the number (27) formed by its first and last digit.

It is an amenable number.

25263117 is a deficient number, since it is larger than the sum of its proper divisors (15566643).

25263117 is a wasteful number, since it uses less digits than its factorization.

25263117 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 85081 (or 85075 counting only the distinct ones).

The product of its digits is 2520, while the sum is 27.

The square root of 25263117 is about 5026.2428313801. The cubic root of 25263117 is about 293.4240076373.

Adding to 25263117 its reverse (71136252), we get a palindrome (96399369).

The spelling of 25263117 in words is "twenty-five million, two hundred sixty-three thousand, one hundred seventeen".