5201821765 has 32 divisors (see below), whose sum is σ = 7192313856. Its totient is φ = 3537898560.

The previous prime is 5201821697. The next prime is 5201821769. The reversal of 5201821765 is 5671281025.

It is not a de Polignac number, because 5201821765 - 2²⁵ = 5168267333 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (5201821769) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 2426284 + ... + 2428426.

It is an arithmetic number, because the mean of its divisors is an integer number (224759808).

Almost surely, 2^5201821765 is an apocalyptic number.

It is an amenable number.

5201821765 is a deficient number, since it is larger than the sum of its proper divisors (1990492091).

5201821765 is a wasteful number, since it uses less digits than its factorization.

5201821765 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2689.

The product of its (nonzero) digits is 33600, while the sum is 37.

The square root of 5201821765 is about 72123.6560706680. The cubic root of 5201821765 is about 1732.6805055320.

The spelling of 5201821765 in words is "five billion, two hundred one million, eight hundred twenty-one thousand, seven hundred sixty-five".