87037722533 has 4 divisors (see below), whose sum is σ = 90039023340. Its totient is φ = 84036421728.

The previous prime is 87037722511. The next prime is 87037722547. The reversal of 87037722533 is 33522773078.

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

It can be written as a sum of positive squares in 2 ways, for example, as 30242253409 + 56795469124 = 173903^2 + 238318^2 .

It is a cyclic number.

It is not a de Polignac number, because 87037722533 - 2²² = 87033528229 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (87037722553) 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, 1500650360 + ... + 1500650417.

It is an arithmetic number, because the mean of its divisors is an integer number (22509755835).

Almost surely, 2^87037722533 is an apocalyptic number.

It is an amenable number.

87037722533 is a deficient number, since it is larger than the sum of its proper divisors (3001300807).

87037722533 is a wasteful number, since it uses less digits than its factorization.

87037722533 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3001300806.

The product of its (nonzero) digits is 1481760, while the sum is 47.

The spelling of 87037722533 in words is "eighty-seven billion, thirty-seven million, seven hundred twenty-two thousand, five hundred thirty-three".