25343431442 has 8 divisors (see below), whose sum is σ = 43445882496. Its totient is φ = 10861470612.

The previous prime is 25343431423. The next prime is 25343431453. The reversal of 25343431442 is 24413434352.

It is a sphenic number, since it is the product of 3 distinct primes.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 905122538 + ... + 905122565.

It is an arithmetic number, because the mean of its divisors is an integer number (5430735312).

Almost surely, 2^25343431442 is an apocalyptic number.

25343431442 is a deficient number, since it is larger than the sum of its proper divisors (18102451054).

25343431442 is a wasteful number, since it uses less digits than its factorization.

25343431442 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1810245112.

The product of its digits is 138240, while the sum is 35.

Adding to 25343431442 its reverse (24413434352), we get a palindrome (49756865794).

The spelling of 25343431442 in words is "twenty-five billion, three hundred forty-three million, four hundred thirty-one thousand, four hundred forty-two".