5525007221 has 2 divisors, whose sum is σ = 5525007222. Its totient is φ = 5525007220.

The previous prime is 5525007199. The next prime is 5525007233. The reversal of 5525007221 is 1227005255.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 5495998225 + 29008996 = 74135^2 + 5386^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-5525007221 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (5525007251) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 2762503610 + 2762503611.

It is an arithmetic number, because the mean of its divisors is an integer number (2762503611).

Almost surely, 2^5525007221 is an apocalyptic number.

It is an amenable number.

5525007221 is a deficient number, since it is larger than the sum of its proper divisors (1).

5525007221 is an equidigital number, since it uses as much as digits as its factorization.

5525007221 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 7000, while the sum is 29.

The square root of 5525007221 is about 74330.3923102791. The cubic root of 5525007221 is about 1767.8454020695.

The spelling of 5525007221 in words is "five billion, five hundred twenty-five million, seven thousand, two hundred twenty-one".