25040530242142 has 4 divisors (see below), whose sum is σ = 37560795363216. Its totient is φ = 12520265121070.

The previous prime is 25040530242089. The next prime is 25040530242151. The reversal of 25040530242142 is 24124203504052.

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

It is a junction number, because it is equal to n+sod(n) for n = 25040530242098 and 25040530242107.

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, 6260132560534 + ... + 6260132560537.

It is an arithmetic number, because the mean of its divisors is an integer number (9390198840804).

Almost surely, 2^{25040530242142} is an apocalyptic number.

25040530242142 is a deficient number, since it is larger than the sum of its proper divisors (12520265121074).

25040530242142 is a wasteful number, since it uses less digits than its factorization.

25040530242142 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 12520265121073.

The product of its (nonzero) digits is 76800, while the sum is 34.

Adding to 25040530242142 its reverse (24124203504052), we get a palindrome (49164733746194).

The spelling of 25040530242142 in words is "twenty-five trillion, forty billion, five hundred thirty million, two hundred forty-two thousand, one hundred forty-two".