25313251042 has 16 divisors (see below), whose sum is σ = 38121480000. Its totient is φ = 12606192720.

The previous prime is 25313251037. The next prime is 25313251081. The reversal of 25313251042 is 24015231352.

It is a self number, because there is not a number n which added to its sum of digits gives 25313251042.

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, 483067 + ... + 532897.

It is an arithmetic number, because the mean of its divisors is an integer number (2382592500).

Almost surely, 2^25313251042 is an apocalyptic number.

25313251042 is a deficient number, since it is larger than the sum of its proper divisors (12808228958).

25313251042 is a wasteful number, since it uses less digits than its factorization.

25313251042 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 50841.

The product of its (nonzero) digits is 7200, while the sum is 28.

Adding to 25313251042 its reverse (24015231352), we get a palindrome (49328482394).

The spelling of 25313251042 in words is "twenty-five billion, three hundred thirteen million, two hundred fifty-one thousand, forty-two".