25115766 has 96 divisors (see below), whose sum is σ = 60715008. Its totient is φ = 6888960.

The previous prime is 25115743. The next prime is 25115773. The reversal of 25115766 is 66751152.

Its product of digits (12600) is a multiple of the sum of its prime factors (126).

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 534355 + ... + 534401.

It is an arithmetic number, because the mean of its divisors is an integer number (632448).

Almost surely, 2^25115766 is an apocalyptic number.

25115766 is a gapful number since it is divisible by the number (26) formed by its first and last digit.

It is a practical number, because each smaller number is the sum of distinct divisors of 25115766, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (30357504).

25115766 is an abundant number, since it is smaller than the sum of its proper divisors (35599242).

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

25115766 is a wasteful number, since it uses less digits than its factorization.

25115766 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 126 (or 113 counting only the distinct ones).

The product of its digits is 12600, while the sum is 33.

The square root of 25115766 is about 5011.5632291731. The cubic root of 25115766 is about 292.8524147334.

The spelling of 25115766 in words is "twenty-five million, one hundred fifteen thousand, seven hundred sixty-six".