25780379 has 8 divisors (see below), whose sum is σ = 26542848. Its totient is φ = 25021440.

The previous prime is 25780367. The next prime is 25780409. The reversal of 25780379 is 97308752.

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 25780379 - 2²⁰ = 24731803 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (25786379) 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 7 ways as a sum of consecutive naturals, for example, 23174 + ... + 24260.

It is an arithmetic number, because the mean of its divisors is an integer number (3317856).

Almost surely, 2^25780379 is an apocalyptic number.

25780379 is a deficient number, since it is larger than the sum of its proper divisors (762469).

25780379 is a wasteful number, since it uses less digits than its factorization.

25780379 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1765.

The product of its (nonzero) digits is 105840, while the sum is 41.

The square root of 25780379 is about 5077.4382320221. The cubic root of 25780379 is about 295.4131107726.

The spelling of 25780379 in words is "twenty-five million, seven hundred eighty thousand, three hundred seventy-nine".