25999416 has 48 divisors (see below), whose sum is σ = 70817760. Its totient is φ = 8616960.

The previous prime is 25999411. The next prime is 25999423. The reversal of 25999416 is 61499952.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (25999411) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 12961 + ... + 14831.

It is an arithmetic number, because the mean of its divisors is an integer number (1475370).

Almost surely, 2^25999416 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 25999416, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (35408880).

25999416 is an abundant number, since it is smaller than the sum of its proper divisors (44818344).

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

25999416 is a wasteful number, since it uses less digits than its factorization.

25999416 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2076 (or 2069 counting only the distinct ones).

The product of its digits is 174960, while the sum is 45.

The square root of 25999416 is about 5098.9622473598. The cubic root of 25999416 is about 296.2473887502.

The spelling of 25999416 in words is "twenty-five million, nine hundred ninety-nine thousand, four hundred sixteen".