25501044142 has 16 divisors (see below), whose sum is σ = 46016922240. Its totient is φ = 10353807288.

The previous prime is 25501044139. The next prime is 25501044169. The reversal of 25501044142 is 24144010552.

25501044142 is digitally balanced in base 5, because in such base it contains all the possibile digits an equal number of times.

It is a self number, because there is not a number n which added to its sum of digits gives 25501044142.

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, 47934028 + ... + 47934559.

It is an arithmetic number, because the mean of its divisors is an integer number (2876057640).

Almost surely, 2^25501044142 is an apocalyptic number.

25501044142 is a deficient number, since it is larger than the sum of its proper divisors (20515878098).

25501044142 is a wasteful number, since it uses less digits than its factorization.

25501044142 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 95868615.

The product of its (nonzero) digits is 6400, while the sum is 28.

Adding to 25501044142 its reverse (24144010552), we get a palindrome (49645054694).

The spelling of 25501044142 in words is "twenty-five billion, five hundred one million, forty-four thousand, one hundred forty-two".