25106324021242 has 16 divisors (see below), whose sum is σ = 38554623613440. Its totient is φ = 12255075780192.

The previous prime is 25106324021161. The next prime is 25106324021243. The reversal of 25106324021242 is 24212042360152.

It is a junction number, because it is equal to n+sod(n) for n = 25106324021198 and 25106324021207.

It is not an unprimeable number, because it can be changed into a prime (25106324021243) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 73068442 + ... + 73411237.

It is an arithmetic number, because the mean of its divisors is an integer number (2409663975840).

Almost surely, 2^{25106324021242} is an apocalyptic number.

25106324021242 is a deficient number, since it is larger than the sum of its proper divisors (13448299592198).

25106324021242 is a wasteful number, since it uses less digits than its factorization.

25106324021242 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 146481717.

The product of its (nonzero) digits is 46080, while the sum is 34.

Adding to 25106324021242 its reverse (24212042360152), we get a palindrome (49318366381394).

The spelling of 25106324021242 in words is "twenty-five trillion, one hundred six billion, three hundred twenty-four million, twenty-one thousand, two hundred forty-two".