5190271621 has 2 divisors, whose sum is σ = 5190271622. Its totient is φ = 5190271620.

The previous prime is 5190271601. The next prime is 5190271643. The reversal of 5190271621 is 1261720915.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 4200854596 + 989417025 = 64814^2 + 31455^2 .

It is a cyclic number.

It is not a de Polignac number, because 5190271621 - 2⁵ = 5190271589 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (5190271601) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 2595135810 + 2595135811.

It is an arithmetic number, because the mean of its divisors is an integer number (2595135811).

Almost surely, 2^5190271621 is an apocalyptic number.

It is an amenable number.

5190271621 is a deficient number, since it is larger than the sum of its proper divisors (1).

5190271621 is an equidigital number, since it uses as much as digits as its factorization.

5190271621 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 7560, while the sum is 34.

The square root of 5190271621 is about 72043.5397589541. The cubic root of 5190271621 is about 1731.3971384960.

The spelling of 5190271621 in words is "five billion, one hundred ninety million, two hundred seventy-one thousand, six hundred twenty-one".