25280342 has 4 divisors (see below), whose sum is σ = 37920516. Its totient is φ = 12640170.

The previous prime is 25280327. The next prime is 25280357. The reversal of 25280342 is 24308252.

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

It is an interprime number because it is at equal distance from previous prime (25280327) and next prime (25280357).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 6320084 + ... + 6320087.

It is an arithmetic number, because the mean of its divisors is an integer number (9480129).

Almost surely, 2^25280342 is an apocalyptic number.

25280342 is a deficient number, since it is larger than the sum of its proper divisors (12640174).

25280342 is a wasteful number, since it uses less digits than its factorization.

25280342 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 12640173.

The product of its (nonzero) digits is 3840, while the sum is 26.

The square root of 25280342 is about 5027.9560459495. The cubic root of 25280342 is about 293.4906803321.

Adding to 25280342 its reverse (24308252), we get a palindrome (49588594).

The spelling of 25280342 in words is "twenty-five million, two hundred eighty thousand, three hundred forty-two".