25455320342 has 16 divisors (see below), whose sum is σ = 39076551360. Its totient is φ = 12429888072.

The previous prime is 25455320333. The next prime is 25455320353. The reversal of 25455320342 is 24302355452.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 741653 + ... + 775215.

It is an arithmetic number, because the mean of its divisors is an integer number (2442284460).

Almost surely, 2^25455320342 is an apocalyptic number.

25455320342 is a deficient number, since it is larger than the sum of its proper divisors (13621231018).

25455320342 is a wasteful number, since it uses less digits than its factorization.

25455320342 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 42427.

The product of its (nonzero) digits is 144000, while the sum is 35.

Adding to 25455320342 its reverse (24302355452), we get a palindrome (49757675794).

The spelling of 25455320342 in words is "twenty-five billion, four hundred fifty-five million, three hundred twenty thousand, three hundred forty-two".