25072216 has 16 divisors (see below), whose sum is σ = 50626800. Its totient is φ = 11571744.

The previous prime is 25072193. The next prime is 25072219. The reversal of 25072216 is 61227052.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (25072219) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 120436 + ... + 120643.

It is an arithmetic number, because the mean of its divisors is an integer number (3164175).

Almost surely, 2^25072216 is an apocalyptic number.

25072216 is a gapful number since it is divisible by the number (26) formed by its first and last digit.

It is an amenable number.

25072216 is an abundant number, since it is smaller than the sum of its proper divisors (25554584).

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

25072216 is a wasteful number, since it uses less digits than its factorization.

25072216 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 241098 (or 241094 counting only the distinct ones).

The product of its (nonzero) digits is 1680, while the sum is 25.

The square root of 25072216 is about 5007.2163923681. The cubic root of 25072216 is about 292.6830509787.

Adding to 25072216 its reverse (61227052), we get a palindrome (86299268).

The spelling of 25072216 in words is "twenty-five million, seventy-two thousand, two hundred sixteen".