25396416 has 168 divisors, whose sum is σ = 79881984. Its totient is φ = 7983360.

The previous prime is 25396391. The next prime is 25396421. The reversal of 25396416 is 61469352.

It is a happy number.

25396416 is a `hidden beast` number, since 2 + 5 + 3 + 9 + 641 + 6 = 666.

It is a Harshad number since it is a multiple of its sum of digits (36).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 357661 + ... + 357731.

It is an arithmetic number, because the mean of its divisors is an integer number (475488).

Almost surely, 2^25396416 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 25396416, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (39940992).

25396416 is an abundant number, since it is smaller than the sum of its proper divisors (54485568).

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

25396416 is an equidigital number, since it uses as much as digits as its factorization.

25396416 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 121 (or 99 counting only the distinct ones).

The product of its digits is 38880, while the sum is 36.

The square root of 25396416 is about 5039.4856880440. The cubic root of 25396416 is about 293.9391794221.

It can be divided in two parts, 253 and 96416, that added together give a palindrome (96669).

The spelling of 25396416 in words is "twenty-five million, three hundred ninety-six thousand, four hundred sixteen".