25154100042 has 24 divisors (see below), whose sum is σ = 51983407008. Its totient is φ = 8114223960.

The previous prime is 25154100007. The next prime is 25154100119. The reversal of 25154100042 is 24000145152.

It is a junction number, because it is equal to n+sod(n) for n = 25154099985 and 25154100021.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 2175478 + ... + 2187009.

It is an arithmetic number, because the mean of its divisors is an integer number (2165975292).

Almost surely, 2^25154100042 is an apocalyptic number.

25154100042 is an abundant number, since it is smaller than the sum of its proper divisors (26829306966).

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

25154100042 is a wasteful number, since it uses less digits than its factorization.

25154100042 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4362554 (or 4362523 counting only the distinct ones).

The product of its (nonzero) digits is 1600, while the sum is 24.

Adding to 25154100042 its reverse (24000145152), we get a palindrome (49154245194).

The spelling of 25154100042 in words is "twenty-five billion, one hundred fifty-four million, one hundred thousand, forty-two".