25451105103542 has 16 divisors (see below), whose sum is σ = 39108170942064. Its totient is φ = 12415054080000.

The previous prime is 25451105103499. The next prime is 25451105103569. The reversal of 25451105103542 is 24530150115452.

It is a junction number, because it is equal to n+sod(n) for n = 25451105103496 and 25451105103505.

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, 7431542 + ... + 10301942.

It is an arithmetic number, because the mean of its divisors is an integer number (2444260683879).

Almost surely, 2^{25451105103542} is an apocalyptic number.

25451105103542 is a deficient number, since it is larger than the sum of its proper divisors (13657065838522).

25451105103542 is a wasteful number, since it uses less digits than its factorization.

25451105103542 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2978575.

The product of its (nonzero) digits is 120000, while the sum is 38.

Adding to 25451105103542 its reverse (24530150115452), we get a palindrome (49981255218994).

The spelling of 25451105103542 in words is "twenty-five trillion, four hundred fifty-one billion, one hundred five million, one hundred three thousand, five hundred forty-two".