87006550 has 24 divisors (see below), whose sum is σ = 162083376. Its totient is φ = 34748640.

The previous prime is 87006511. The next prime is 87006559. The reversal of 87006550 is 5560078.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (87006559) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 52332 + ... + 53968.

It is an arithmetic number, because the mean of its divisors is an integer number (6753474).

Almost surely, 2^87006550 is an apocalyptic number.

87006550 is a deficient number, since it is larger than the sum of its proper divisors (75076826).

87006550 is a wasteful number, since it uses less digits than its factorization.

87006550 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2712 (or 2707 counting only the distinct ones).

The product of its (nonzero) digits is 8400, while the sum is 31.

The square root of 87006550 is about 9327.7301633356. The cubic root of 87006550 is about 443.1158819523.

The spelling of 87006550 in words is "eighty-seven million, six thousand, five hundred fifty".