25387423 has 8 divisors (see below), whose sum is σ = 26551008. Its totient is φ = 24228864.

The previous prime is 25387421. The next prime is 25387433. The reversal of 25387423 is 32478352.

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 25387423 - 2¹ = 25387421 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 (25387421) 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, 12315 + ... + 14227.

It is an arithmetic number, because the mean of its divisors is an integer number (3318876).

Almost surely, 2^25387423 is an apocalyptic number.

25387423 is a gapful number since it is divisible by the number (23) formed by its first and last digit.

25387423 is a deficient number, since it is larger than the sum of its proper divisors (1163585).

25387423 is a wasteful number, since it uses less digits than its factorization.

25387423 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2513.

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

The square root of 25387423 is about 5038.5933552927. The cubic root of 25387423 is about 293.9044802068.

The spelling of 25387423 in words is "twenty-five million, three hundred eighty-seven thousand, four hundred twenty-three".