25045400142 has 48 divisors (see below), whose sum is σ = 62029618560. Its totient is φ = 7154393616.

The previous prime is 25045400141. The next prime is 25045400249. The reversal of 25045400142 is 24100454052.

25045400142 is a `hidden beast` number, since 250 + 4 + 5 + 400 + 1 + 4 + 2 = 666.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (25045400141) by changing a digit.

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 23 ways as a sum of consecutive naturals, for example, 719209 + ... + 753227.

It is an arithmetic number, because the mean of its divisors is an integer number (1292283720).

Almost surely, 2^25045400142 is an apocalyptic number.

25045400142 is an abundant number, since it is smaller than the sum of its proper divisors (36984218418).

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

25045400142 is a wasteful number, since it uses less digits than its factorization.

25045400142 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 39877 (or 39874 counting only the distinct ones).

The product of its (nonzero) digits is 6400, while the sum is 27.

Adding to 25045400142 its reverse (24100454052), we get a palindrome (49145854194).

The spelling of 25045400142 in words is "twenty-five billion, forty-five million, four hundred thousand, one hundred forty-two".