25381967 has 8 divisors (see below), whose sum is σ = 28773360. Its totient is φ = 22196160.

The previous prime is 25381943. The next prime is 25381973. The reversal of 25381967 is 76918352.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 25381967 - 2¹⁸ = 25119823 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (25381067) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 51134 + ... + 51627.

It is an arithmetic number, because the mean of its divisors is an integer number (3596670).

Almost surely, 2^25381967 is an apocalyptic number.

25381967 is a deficient number, since it is larger than the sum of its proper divisors (3391393).

25381967 is a wasteful number, since it uses less digits than its factorization.

25381967 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 102793.

The product of its digits is 90720, while the sum is 41.

The square root of 25381967 is about 5038.0519052507. The cubic root of 25381967 is about 293.8834244039.

The spelling of 25381967 in words is "twenty-five million, three hundred eighty-one thousand, nine hundred sixty-seven".