5210621543 has 2 divisors, whose sum is σ = 5210621544. Its totient is φ = 5210621542.

The previous prime is 5210621539. The next prime is 5210621551. The reversal of 5210621543 is 3451260125.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 5210621543 - 2² = 5210621539 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (5210621573) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 2605310771 + 2605310772.

It is an arithmetic number, because the mean of its divisors is an integer number (2605310772).

Almost surely, 2^5210621543 is an apocalyptic number.

5210621543 is a deficient number, since it is larger than the sum of its proper divisors (1).

5210621543 is an equidigital number, since it uses as much as digits as its factorization.

5210621543 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 7200, while the sum is 29.

The square root of 5210621543 is about 72184.6350894704. The cubic root of 5210621543 is about 1733.6569976659.

Adding to 5210621543 its reverse (3451260125), we get a palindrome (8661881668).

The spelling of 5210621543 in words is "five billion, two hundred ten million, six hundred twenty-one thousand, five hundred forty-three".