25545379 has 2 divisors, whose sum is σ = 25545380. Its totient is φ = 25545378.

The previous prime is 25545371. The next prime is 25545389. The reversal of 25545379 is 97354552.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 25545379 - 2³ = 25545371 is a prime.

It is a Chen prime.

It is not a weakly prime, because it can be changed into another prime (25545371) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 12772689 + 12772690.

It is an arithmetic number, because the mean of its divisors is an integer number (12772690).

Almost surely, 2^25545379 is an apocalyptic number.

25545379 is a deficient number, since it is larger than the sum of its proper divisors (1).

25545379 is an equidigital number, since it uses as much as digits as its factorization.

25545379 is an evil number, because the sum of its binary digits is even.

The product of its digits is 189000, while the sum is 40.

The square root of 25545379 is about 5054.2436625078. The cubic root of 25545379 is about 294.5127607578.

The spelling of 25545379 in words is "twenty-five million, five hundred forty-five thousand, three hundred seventy-nine".