5500421257 has 2 divisors, whose sum is σ = 5500421258. Its totient is φ = 5500421256.

The previous prime is 5500421237. The next prime is 5500421263. The reversal of 5500421257 is 7521240055.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 3450505081 + 2049916176 = 58741^2 + 45276^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-5500421257 is a prime.

It is not a weakly prime, because it can be changed into another prime (5500421237) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 2750210628 + 2750210629.

It is an arithmetic number, because the mean of its divisors is an integer number (2750210629).

Almost surely, 2^5500421257 is an apocalyptic number.

It is an amenable number.

5500421257 is a deficient number, since it is larger than the sum of its proper divisors (1).

5500421257 is an equidigital number, since it uses as much as digits as its factorization.

5500421257 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 14000, while the sum is 31.

The square root of 5500421257 is about 74164.8249306907. The cubic root of 5500421257 is about 1765.2192326928.

The spelling of 5500421257 in words is "five billion, five hundred million, four hundred twenty-one thousand, two hundred fifty-seven".