5221961057 has 2 divisors, whose sum is σ = 5221961058. Its totient is φ = 5221961056.

The previous prime is 5221961047. The next prime is 5221961153. The reversal of 5221961057 is 7501691225.

It is a happy number.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 5052935056 + 169026001 = 71084^2 + 13001^2 .

It is a cyclic number.

It is not a de Polignac number, because 5221961057 - 2⁸ = 5221960801 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 5221961057.

It is not a weakly prime, because it can be changed into another prime (5221961027) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 2610980528 + 2610980529.

It is an arithmetic number, because the mean of its divisors is an integer number (2610980529).

Almost surely, 2^5221961057 is an apocalyptic number.

It is an amenable number.

5221961057 is a deficient number, since it is larger than the sum of its proper divisors (1).

5221961057 is an equidigital number, since it uses as much as digits as its factorization.

5221961057 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 37800, while the sum is 38.

The square root of 5221961057 is about 72263.1376083270. The cubic root of 5221961057 is about 1734.9136989466.

The spelling of 5221961057 in words is "five billion, two hundred twenty-one million, nine hundred sixty-one thousand, fifty-seven".