87500533 has 16 divisors (see below), whose sum is σ = 93177216. Its totient is φ = 82001920.

The previous prime is 87500531. The next prime is 87500551. The reversal of 87500533 is 33500578.

It is a cyclic number.

It is not a de Polignac number, because 87500533 - 2¹ = 87500531 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 87500495 and 87500504.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (87500531) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 340341 + ... + 340597.

It is an arithmetic number, because the mean of its divisors is an integer number (5823576).

Almost surely, 2^87500533 is an apocalyptic number.

It is an amenable number.

87500533 is a deficient number, since it is larger than the sum of its proper divisors (5676683).

87500533 is a wasteful number, since it uses less digits than its factorization.

87500533 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 524.

The product of its (nonzero) digits is 12600, while the sum is 31.

The square root of 87500533 is about 9354.1719569399. The cubic root of 87500533 is about 443.9529023034.

The spelling of 87500533 in words is "eighty-seven million, five hundred thousand, five hundred thirty-three".