25122116 has 12 divisors (see below), whose sum is σ = 44033388. Its totient is φ = 12541152.

The previous prime is 25122103. The next prime is 25122131. The reversal of 25122116 is 61122152.

It can be written as a sum of positive squares in 2 ways, for example, as 23483716 + 1638400 = 4846^2 + 1280^2 .

It is a super-2 number, since 2×25122116² = 1262241424634912, which contains 22 as substring.

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, 1931 + ... + 7346.

It is an arithmetic number, because the mean of its divisors is an integer number (3669449).

Almost surely, 2^25122116 is an apocalyptic number.

It is an amenable number.

25122116 is a deficient number, since it is larger than the sum of its proper divisors (18911272).

25122116 is a wasteful number, since it uses less digits than its factorization.

25122116 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 9958 (or 9956 counting only the distinct ones).

The product of its digits is 240, while the sum is 20.

The square root of 25122116 is about 5012.1967239924. The cubic root of 25122116 is about 292.8770932048.

Adding to 25122116 its reverse (61122152), we get a palindrome (86244268).

The spelling of 25122116 in words is "twenty-five million, one hundred twenty-two thousand, one hundred sixteen".