87505591083 has 4 divisors (see below), whose sum is σ = 116674121448. Its totient is φ = 58337060720.

The previous prime is 87505591079. The next prime is 87505591127. The reversal of 87505591083 is 38019550578.

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

It is a cyclic number.

It is not a de Polignac number, because 87505591083 - 2² = 87505591079 is a prime.

It is a super-2 number, since 2×87505591083² (a number of 23 digits) contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (87505591073) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 14584265178 + ... + 14584265183.

It is an arithmetic number, because the mean of its divisors is an integer number (29168530362).

Almost surely, 2^87505591083 is an apocalyptic number.

87505591083 is a deficient number, since it is larger than the sum of its proper divisors (29168530365).

87505591083 is a wasteful number, since it uses less digits than its factorization.

87505591083 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 29168530364.

The product of its (nonzero) digits is 1512000, while the sum is 51.

The spelling of 87505591083 in words is "eighty-seven billion, five hundred five million, five hundred ninety-one thousand, eighty-three".