5000615621 has 2 divisors, whose sum is σ = 5000615622. Its totient is φ = 5000615620.

The previous prime is 5000615597. The next prime is 5000615693. The reversal of 5000615621 is 1265160005.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 2990886721 + 2009728900 = 54689^2 + 44830^2 .

It is a cyclic number.

It is not a de Polignac number, because 5000615621 - 2²⁶ = 4933506757 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (5000611621) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 2500307810 + 2500307811.

It is an arithmetic number, because the mean of its divisors is an integer number (2500307811).

Almost surely, 2^5000615621 is an apocalyptic number.

It is an amenable number.

5000615621 is a deficient number, since it is larger than the sum of its proper divisors (1).

5000615621 is an equidigital number, since it uses as much as digits as its factorization.

5000615621 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 1800, while the sum is 26.

The square root of 5000615621 is about 70715.0310825075. The cubic root of 5000615621 is about 1710.0461236034.

Adding to 5000615621 its reverse (1265160005), we get a palindrome (6265775626).

The spelling of 5000615621 in words is "five billion, six hundred fifteen thousand, six hundred twenty-one".