87452020571 has 4 divisors (see below), whose sum is σ = 87452958192. Its totient is φ = 87451082952.

The previous prime is 87452020561. The next prime is 87452020627. The reversal of 87452020571 is 17502025478.

It is a semiprime because it is the product of two primes, and also a brilliant number, because the two primes have the same length.

It is a cyclic number.

It is not a de Polignac number, because 87452020571 - 2¹⁰ = 87452019547 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (87452020501) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 311255 + ... + 521328.

It is an arithmetic number, because the mean of its divisors is an integer number (21863239548).

Almost surely, 2^87452020571 is an apocalyptic number.

87452020571 is a deficient number, since it is larger than the sum of its proper divisors (937621).

87452020571 is a wasteful number, since it uses less digits than its factorization.

87452020571 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 937620.

The product of its (nonzero) digits is 156800, while the sum is 41.

The spelling of 87452020571 in words is "eighty-seven billion, four hundred fifty-two million, twenty thousand, five hundred seventy-one".