25117712 has 20 divisors (see below), whose sum is σ = 50344620. Its totient is φ = 12125568.

The previous prime is 25117699. The next prime is 25117723. The reversal of 25117712 is 21771152.

It can be written as a sum of positive squares in 2 ways, for example, as 4177936 + 20939776 = 2044^2 + 4576^2 .

It is a super-2 number, since 2×25117712² = 1261798912229888, which contains 22 as substring.

It is an unprimeable number.

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 3 ways as a sum of consecutive naturals, for example, 26603 + ... + 27530.

It is an arithmetic number, because the mean of its divisors is an integer number (2517231).

Almost surely, 2^25117712 is an apocalyptic number.

It is an amenable number.

25117712 is an abundant number, since it is smaller than the sum of its proper divisors (25226908).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

25117712 is a wasteful number, since it uses less digits than its factorization.

25117712 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 54170 (or 54164 counting only the distinct ones).

The product of its digits is 980, while the sum is 26.

The square root of 25117712 is about 5011.7573764100. The cubic root of 25117712 is about 292.8599780582.

Adding to 25117712 its reverse (21771152), we get a palindrome (46888864).

The spelling of 25117712 in words is "twenty-five million, one hundred seventeen thousand, seven hundred twelve".