25010016 has 96 divisors (see below), whose sum is σ = 70253568. Its totient is φ = 7772160.

The previous prime is 25010003. The next prime is 25010021. The reversal of 25010016 is 61001052.

It is a tau number, because it is divible by the number of its divisors (96).

It is a junction number, because it is equal to n+sod(n) for n = 25009977 and 25010004.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 103656 + ... + 103896.

It is an arithmetic number, because the mean of its divisors is an integer number (731808).

Almost surely, 2^25010016 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 25010016, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (35126784).

25010016 is an abundant number, since it is smaller than the sum of its proper divisors (45243552).

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

25010016 is a wasteful number, since it uses less digits than its factorization.

25010016 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 324 (or 316 counting only the distinct ones).

The product of its (nonzero) digits is 60, while the sum is 15.

The square root of 25010016 is about 5001.0014996998. The cubic root of 25010016 is about 292.4408178898.

Subtracting from 25010016 its sum of digits (15), we obtain a square (25010001 = 5001²).

Adding to 25010016 its reverse (61001052), we get a palindrome (86011068).

The spelling of 25010016 in words is "twenty-five million, ten thousand, sixteen".