25402423 has 8 divisors (see below), whose sum is σ = 26718336. Its totient is φ = 24117600.

The previous prime is 25402417. The next prime is 25402439. The reversal of 25402423 is 32420452.

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-25402423 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 25402394 and 25402403.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (25402453) 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, 6088 + ... + 9373.

It is an arithmetic number, because the mean of its divisors is an integer number (3339792).

Almost surely, 2^25402423 is an apocalyptic number.

25402423 is a deficient number, since it is larger than the sum of its proper divisors (1315913).

25402423 is a wasteful number, since it uses less digits than its factorization.

25402423 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 15545.

The product of its (nonzero) digits is 1920, while the sum is 22.

The square root of 25402423 is about 5040.0816461641. The cubic root of 25402423 is about 293.9623526847.

Adding to 25402423 its reverse (32420452), we get a palindrome (57822875).

The spelling of 25402423 in words is "twenty-five million, four hundred two thousand, four hundred twenty-three".