25161716 has 12 divisors (see below), whose sum is σ = 44690688. Its totient is φ = 12392952.

The previous prime is 25161679. The next prime is 25161727. The reversal of 25161716 is 61716152.

It is a super-2 number, since 2×25161716² = 1266223904129312, which contains 22 as substring.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 46676 + ... + 47211.

It is an arithmetic number, because the mean of its divisors is an integer number (3724224).

Almost surely, 2^25161716 is an apocalyptic number.

It is an amenable number.

25161716 is a deficient number, since it is larger than the sum of its proper divisors (19528972).

25161716 is a wasteful number, since it uses less digits than its factorization.

25161716 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 93958 (or 93956 counting only the distinct ones).

The product of its digits is 2520, while the sum is 29.

The square root of 25161716 is about 5016.1455321791. The cubic root of 25161716 is about 293.0308998385.

Adding to 25161716 its reverse (61716152), we get a palindrome (86877868).

The spelling of 25161716 in words is "twenty-five million, one hundred sixty-one thousand, seven hundred sixteen".