25138512530086 has 4 divisors (see below), whose sum is σ = 37707768795132. Its totient is φ = 12569256265042.

The previous prime is 25138512530083. The next prime is 25138512530119. The reversal of 25138512530086 is 68003521583152.

It is a semiprime because it is the product of two primes.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (25138512530083) 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 as a sum of consecutive naturals, namely, 6284628132520 + ... + 6284628132523.

It is an arithmetic number, because the mean of its divisors is an integer number (9426942198783).

Almost surely, 2^{25138512530086} is an apocalyptic number.

25138512530086 is a deficient number, since it is larger than the sum of its proper divisors (12569256265046).

25138512530086 is a wasteful number, since it uses less digits than its factorization.

25138512530086 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 12569256265045.

The product of its (nonzero) digits is 1728000, while the sum is 49.

The spelling of 25138512530086 in words is "twenty-five trillion, one hundred thirty-eight billion, five hundred twelve million, five hundred thirty thousand, eighty-six".