87657125250 has 64 divisors (see below), whose sum is σ = 219238710912. Its totient is φ = 23327528000.

The previous prime is 87657125221. The next prime is 87657125261. The reversal of 87657125250 is 5252175678.

It is a self number, because there is not a number n which added to its sum of digits gives 87657125250.

It is an unprimeable number.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 249232 + ... + 487268.

It is an arithmetic number, because the mean of its divisors is an integer number (3425604858).

Almost surely, 2^87657125250 is an apocalyptic number.

It is a practical number, because each smaller number is the sum of distinct divisors of 87657125250, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (109619355456).

87657125250 is an abundant number, since it is smaller than the sum of its proper divisors (131581585662).

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

87657125250 is a wasteful number, since it uses less digits than its factorization.

87657125250 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 238548 (or 238538 counting only the distinct ones).

The product of its (nonzero) digits is 1176000, while the sum is 48.

The spelling of 87657125250 in words is "eighty-seven billion, six hundred fifty-seven million, one hundred twenty-five thousand, two hundred fifty".