5021440397 has 2 divisors, whose sum is σ = 5021440398. Its totient is φ = 5021440396.

The previous prime is 5021440337. The next prime is 5021440439. The reversal of 5021440397 is 7930441205.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 4654104841 + 367335556 = 68221^2 + 19166^2 .

It is a cyclic number.

It is not a de Polignac number, because 5021440397 - 2²⁶ = 4954331533 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (5021440337) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 2510720198 + 2510720199.

It is an arithmetic number, because the mean of its divisors is an integer number (2510720199).

Almost surely, 2^5021440397 is an apocalyptic number.

It is an amenable number.

5021440397 is a deficient number, since it is larger than the sum of its proper divisors (1).

5021440397 is an equidigital number, since it uses as much as digits as its factorization.

5021440397 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 30240, while the sum is 35.

The square root of 5021440397 is about 70862.1224421058. The cubic root of 5021440397 is about 1712.4166322532.

The spelling of 5021440397 in words is "five billion, twenty-one million, four hundred forty thousand, three hundred ninety-seven".