25123205535042 has 8 divisors (see below), whose sum is σ = 50246411070096. Its totient is φ = 8374401845012.

The previous prime is 25123205534993. The next prime is 25123205535101. The reversal of 25123205535042 is 24053550232152.

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

25123205535042 is an admirable number.

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, 2093600461248 + ... + 2093600461259.

It is an arithmetic number, because the mean of its divisors is an integer number (6280801383762).

Almost surely, 2^{25123205535042} is an apocalyptic number.

25123205535042 is a primitive abundant number, since it is smaller than the sum of its proper divisors, none of which is abundant.

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

25123205535042 is a wasteful number, since it uses less digits than its factorization.

25123205535042 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4187200922512.

The product of its (nonzero) digits is 360000, while the sum is 39.

Adding to 25123205535042 its reverse (24053550232152), we get a palindrome (49176755767194).

The spelling of 25123205535042 in words is "twenty-five trillion, one hundred twenty-three billion, two hundred five million, five hundred thirty-five thousand, forty-two".