25131013554042 has 48 divisors (see below), whose sum is σ = 61316725167360. Its totient is φ = 7369798694400.

The previous prime is 25131013554041. The next prime is 25131013554047. The reversal of 25131013554042 is 24045531013152.

25131013554042 is a `hidden beast` number, since 2 + 5 + 1 + 3 + 101 + 3 + 5 + 540 + 4 + 2 = 666.

It is a junction number, because it is equal to n+sod(n) for n = 25131013553988 and 25131013554006.

It is not an unprimeable number, because it can be changed into a prime (25131013554041) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 2047160167 + ... + 2047172442.

It is an arithmetic number, because the mean of its divisors is an integer number (1277431774320).

Almost surely, 2^{25131013554042} is an apocalyptic number.

25131013554042 is a gapful number since it is divisible by the number (22) formed by its first and last digit.

25131013554042 is an abundant number, since it is smaller than the sum of its proper divisors (36185711613318).

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

25131013554042 is a wasteful number, since it uses less digits than its factorization.

25131013554042 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4094332659 (or 4094332656 counting only the distinct ones).

The product of its (nonzero) digits is 72000, while the sum is 36.

Adding to 25131013554042 its reverse (24045531013152), we get a palindrome (49176544567194).

The spelling of 25131013554042 in words is "twenty-five trillion, one hundred thirty-one billion, thirteen million, five hundred fifty-four thousand, forty-two".