25378567 has 8 divisors (see below), whose sum is σ = 26313840. Its totient is φ = 24447360.

The previous prime is 25378541. The next prime is 25378571. The reversal of 25378567 is 76587352.

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

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-25378567 is a prime.

It is a Duffinian number.

It is a zygodrome in base 2.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (25378517) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 17967 + ... + 19327.

It is an arithmetic number, because the mean of its divisors is an integer number (3289230).

Almost surely, 2^25378567 is an apocalyptic number.

25378567 is a deficient number, since it is larger than the sum of its proper divisors (935273).

25378567 is a wasteful number, since it uses less digits than its factorization.

25378567 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2033.

The product of its digits is 352800, while the sum is 43.

The square root of 25378567 is about 5037.7144619361. The cubic root of 25378567 is about 293.8703015929.

The spelling of 25378567 in words is "twenty-five million, three hundred seventy-eight thousand, five hundred sixty-seven".