5201243091 has 16 divisors (see below), whose sum is σ = 8406049920. Its totient is φ = 3152268360.

The previous prime is 5201243077. The next prime is 5201243093. The reversal of 5201243091 is 1903421025.

5201243091 is a `hidden beast` number, since 520 + 1 + 24 + 30 + 91 = 666.

It is not a de Polignac number, because 5201243091 - 2⁵ = 5201243059 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (27).

It is not an unprimeable number, because it can be changed into a prime (5201243093) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 8756005 + ... + 8756598.

It is an arithmetic number, because the mean of its divisors is an integer number (525378120).

Almost surely, 2^5201243091 is an apocalyptic number.

5201243091 is a deficient number, since it is larger than the sum of its proper divisors (3204806829).

5201243091 is a wasteful number, since it uses less digits than its factorization.

5201243091 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 17512623 (or 17512617 counting only the distinct ones).

The product of its (nonzero) digits is 2160, while the sum is 27.

The square root of 5201243091 is about 72119.6442794888. The cubic root of 5201243091 is about 1732.6162527640.

The spelling of 5201243091 in words is "five billion, two hundred one million, two hundred forty-three thousand, ninety-one".