25142330772 has 144 divisors (see below), whose sum is σ = 70708740480. Its totient is φ = 7722404352.

The previous prime is 25142330753. The next prime is 25142330803. The reversal of 25142330772 is 27703324152.

25142330772 is a `hidden beast` number, since 251 + 4 + 2 + 330 + 7 + 72 = 666.

It is a Harshad number since it is a multiple of its sum of digits (36).

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 16188748 + ... + 16190300.

It is an arithmetic number, because the mean of its divisors is an integer number (491032920).

Almost surely, 2^25142330772 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 25142330772, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (35354370240).

25142330772 is an abundant number, since it is smaller than the sum of its proper divisors (45566409708).

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

25142330772 is a wasteful number, since it uses less digits than its factorization.

25142330772 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2479 (or 2458 counting only the distinct ones).

The product of its (nonzero) digits is 70560, while the sum is 36.

The spelling of 25142330772 in words is "twenty-five billion, one hundred forty-two million, three hundred thirty thousand, seven hundred seventy-two".