5196788221 has 2 divisors, whose sum is σ = 5196788222. Its totient is φ = 5196788220.

The previous prime is 5196788203. The next prime is 5196788227. The reversal of 5196788221 is 1228876915.

It is a happy number.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 4812196900 + 384591321 = 69370^2 + 19611^2 .

It is a cyclic number.

It is not a de Polignac number, because 5196788221 - 2²³ = 5188399613 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (5196788227) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 2598394110 + 2598394111.

It is an arithmetic number, because the mean of its divisors is an integer number (2598394111).

Almost surely, 2^5196788221 is an apocalyptic number.

It is an amenable number.

5196788221 is a deficient number, since it is larger than the sum of its proper divisors (1).

5196788221 is an equidigital number, since it uses as much as digits as its factorization.

5196788221 is an evil number, because the sum of its binary digits is even.

The product of its digits is 483840, while the sum is 49.

The square root of 5196788221 is about 72088.7523889823. The cubic root of 5196788221 is about 1732.1214489426.

The spelling of 5196788221 in words is "five billion, one hundred ninety-six million, seven hundred eighty-eight thousand, two hundred twenty-one".