36021205531 has 8 divisors (see below), whose sum is σ = 38146471344. Its totient is φ = 33896647680.

The previous prime is 36021205477. The next prime is 36021205541. The reversal of 36021205531 is 13550212063.

36021205531 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 36021205531 - 2⁷ = 36021205403 is a prime.

It is a super-3 number, since 3×36021205531³ (a number of 33 digits) contains 333 as substring. Note that it is a super-d number also for d = 2.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 36021205531.

It is not an unprimeable number, because it can be changed into a prime (36021205541) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 70390 + ... + 277483.

It is an arithmetic number, because the mean of its divisors is an integer number (4768308918).

Almost surely, 2^36021205531 is an apocalyptic number.

36021205531 is a deficient number, since it is larger than the sum of its proper divisors (2125265813).

36021205531 is a wasteful number, since it uses less digits than its factorization.

36021205531 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 353981.

The product of its (nonzero) digits is 5400, while the sum is 28.

Adding to 36021205531 its reverse (13550212063), we get a palindrome (49571417594).

The spelling of 36021205531 in words is "thirty-six billion, twenty-one million, two hundred five thousand, five hundred thirty-one".