87849506525 has 24 divisors (see below), whose sum is σ = 119091065184. Its totient is φ = 63753646400.

The previous prime is 87849506509. The next prime is 87849506543. The reversal of 87849506525 is 52560594878.

It is not a de Polignac number, because 87849506525 - 2⁴ = 87849506509 is a prime.

It is a Duffinian number.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 213602 + ... + 470451.

It is an arithmetic number, because the mean of its divisors is an integer number (4962127716).

Almost surely, 2^87849506525 is an apocalyptic number.

It is an amenable number.

87849506525 is a deficient number, since it is larger than the sum of its proper divisors (31241558659).

87849506525 is a wasteful number, since it uses less digits than its factorization.

87849506525 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 684541 (or 684536 counting only the distinct ones).

The product of its (nonzero) digits is 24192000, while the sum is 59.

The spelling of 87849506525 in words is "eighty-seven billion, eight hundred forty-nine million, five hundred six thousand, five hundred twenty-five".