25394616 has 72 divisors (see below), whose sum is σ = 74510280. Its totient is φ = 7809984.

The previous prime is 25394573. The next prime is 25394627. The reversal of 25394616 is 61649352.

It is a happy number.

25394616 is a `hidden beast` number, since 2 + 5 + 39 + 4 + 616 = 666.

It is a tau number, because it is divible by the number of its divisors (72).

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 17 ways as a sum of consecutive naturals, for example, 11125 + ... + 13211.

It is an arithmetic number, because the mean of its divisors is an integer number (1034865).

Almost surely, 2^25394616 is an apocalyptic number.

25394616 is a gapful number since it is divisible by the number (26) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 25394616, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (37255140).

25394616 is an abundant number, since it is smaller than the sum of its proper divisors (49115664).

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

25394616 is a wasteful number, since it uses less digits than its factorization.

25394616 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2125 (or 2105 counting only the distinct ones).

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

The square root of 25394616 is about 5039.3070952265. The cubic root of 25394616 is about 293.9322348330.

The spelling of 25394616 in words is "twenty-five million, three hundred ninety-four thousand, six hundred sixteen".