5038521491 has 2 divisors, whose sum is σ = 5038521492. Its totient is φ = 5038521490.

The previous prime is 5038521469. The next prime is 5038521563. The reversal of 5038521491 is 1941258305.

It is a happy number.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 5038521491 - 2¹⁴ = 5038505107 is a prime.

It is not a weakly prime, because it can be changed into another prime (5038521991) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 2519260745 + 2519260746.

It is an arithmetic number, because the mean of its divisors is an integer number (2519260746).

Almost surely, 2^5038521491 is an apocalyptic number.

5038521491 is a deficient number, since it is larger than the sum of its proper divisors (1).

5038521491 is an equidigital number, since it uses as much as digits as its factorization.

5038521491 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 43200, while the sum is 38.

The square root of 5038521491 is about 70982.5435653020. The cubic root of 5038521491 is about 1714.3561053811.

Adding to 5038521491 its reverse (1941258305), we get a palindrome (6979779796).

The spelling of 5038521491 in words is "five billion, thirty-eight million, five hundred twenty-one thousand, four hundred ninety-one".