36520602551 has 4 divisors (see below), whose sum is σ = 36539058600. Its totient is φ = 36502146504.

The previous prime is 36520602539. The next prime is 36520602589. The reversal of 36520602551 is 15520602563.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 15520602563 = 127 ⋅122209469.

It is a cyclic number.

It is not a de Polignac number, because 36520602551 - 2¹⁰ = 36520601527 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 (36520602511) 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, 9225056 + ... + 9229013.

It is an arithmetic number, because the mean of its divisors is an integer number (9134764650).

Almost surely, 2^36520602551 is an apocalyptic number.

36520602551 is a deficient number, since it is larger than the sum of its proper divisors (18456049).

36520602551 is a wasteful number, since it uses less digits than its factorization.

36520602551 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 18456048.

The product of its (nonzero) digits is 54000, while the sum is 35.

The spelling of 36520602551 in words is "thirty-six billion, five hundred twenty million, six hundred two thousand, five hundred fifty-one".