25342 has 4 divisors (see below), whose sum is σ = 38016. Its totient is φ = 12670.

The previous prime is 25339. The next prime is 25343. The reversal of 25342 is 24352.

It is a semiprime because it is the product of two primes.

It is an Ulam number.

It is a d-powerful number, because it can be written as 2⁵ + 5 + 3⁶ + 4⁷ + 2¹³ .

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (25343) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 6334 + ... + 6337.

It is an arithmetic number, because the mean of its divisors is an integer number (9504).

2²⁵³⁴² is an apocalyptic number.

25342 is a deficient number, since it is larger than the sum of its proper divisors (12674).

25342 is a wasteful number, since it uses less digits than its factorization.

25342 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 12673.

The product of its digits is 240, while the sum is 16.

The square root of 25342 is about 159.1917083268. The cubic root of 25342 is about 29.3729091616.

Adding to 25342 its reverse (24352), we get a palindrome (49694).

Subtracting from 25342 its reverse (24352), we obtain a triangular number (990 = T₄₄).

The spelling of 25342 in words is "twenty-five thousand, three hundred forty-two".