25125020142 has 32 divisors (see below), whose sum is σ = 51510273408. Its totient is φ = 8165662176.

The previous prime is 25125020119. The next prime is 25125020149. The reversal of 25125020142 is 24102052152.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (25125020149) 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 15 ways as a sum of consecutive naturals, for example, 58768 + ... + 231740.

It is an arithmetic number, because the mean of its divisors is an integer number (1609696044).

Almost surely, 2^25125020142 is an apocalyptic number.

25125020142 is an abundant number, since it is smaller than the sum of its proper divisors (26385253266).

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

25125020142 is a wasteful number, since it uses less digits than its factorization.

25125020142 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 173584.

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

Adding to 25125020142 its reverse (24102052152), we get a palindrome (49227072294).

The spelling of 25125020142 in words is "twenty-five billion, one hundred twenty-five million, twenty thousand, one hundred forty-two".