25378423 has 6 divisors (see below), whose sum is σ = 29521896. Its totient is φ = 21752892.

The previous prime is 25378421. The next prime is 25378469. The reversal of 25378423 is 32487352.

It is not a de Polignac number, because 25378423 - 2¹ = 25378421 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 (25378421) by changing a digit.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 258915 + ... + 259012.

It is an arithmetic number, because the mean of its divisors is an integer number (4920316).

Almost surely, 2^25378423 is an apocalyptic number.

25378423 is a deficient number, since it is larger than the sum of its proper divisors (4143473).

25378423 is an equidigital number, since it uses as much as digits as its factorization.

25378423 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 517941 (or 517934 counting only the distinct ones).

The product of its digits is 40320, while the sum is 34.

The square root of 25378423 is about 5037.7001697203. The cubic root of 25378423 is about 293.8697457774.

The spelling of 25378423 in words is "twenty-five million, three hundred seventy-eight thousand, four hundred twenty-three".