25051968 has 168 divisors, whose sum is σ = 78614016. Its totient is φ = 7603200.

The previous prime is 25051919. The next prime is 25051981. The reversal of 25051968 is 86915052.

It is a happy number.

It is a super-2 number, since 2×25051968² = 1255202201346048, which contains 22 as substring.

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

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 410658 + ... + 410718.

Almost surely, 2^25051968 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 25051968, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (39307008).

25051968 is an abundant number, since it is smaller than the sum of its proper divisors (53562048).

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

25051968 is a wasteful number, since it uses less digits than its factorization.

25051968 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 133 (or 120 counting only the distinct ones).

The product of its (nonzero) digits is 21600, while the sum is 36.

The square root of 25051968 is about 5005.1941021303. The cubic root of 25051968 is about 292.6042407338.

The spelling of 25051968 in words is "twenty-five million, fifty-one thousand, nine hundred sixty-eight".