25350139248 has 40 divisors (see below), whose sum is σ = 74843269248. Its totient is φ = 7242896832.

The previous prime is 25350139231. The next prime is 25350139249. The reversal of 25350139248 is 84293105352.

It is a Harshad number since it is a multiple of its sum of digits (42).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (25350139249) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 37723086 + ... + 37723757.

Almost surely, 2^25350139248 is an apocalyptic number.

25350139248 is a gapful number since it is divisible by the number (28) formed by its first and last digit.

It is an amenable number.

25350139248 is an abundant number, since it is smaller than the sum of its proper divisors (49493130000).

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

25350139248 is a wasteful number, since it uses less digits than its factorization.

25350139248 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 75446861 (or 75446855 counting only the distinct ones).

The product of its (nonzero) digits is 259200, while the sum is 42.

The spelling of 25350139248 in words is "twenty-five billion, three hundred fifty million, one hundred thirty-nine thousand, two hundred forty-eight".