551225497 has 2 divisors, whose sum is σ = 551225498. Its totient is φ = 551225496.

The previous prime is 551225491. The next prime is 551225501. The reversal of 551225497 is 794522155.

It is a happy number.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 364657216 + 186568281 = 19096^2 + 13659^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-551225497 is a prime.

It is not a weakly prime, because it can be changed into another prime (551225491) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 275612748 + 275612749.

It is an arithmetic number, because the mean of its divisors is an integer number (275612749).

Almost surely, 2^551225497 is an apocalyptic number.

It is an amenable number.

551225497 is a deficient number, since it is larger than the sum of its proper divisors (1).

551225497 is an equidigital number, since it uses as much as digits as its factorization.

551225497 is an evil number, because the sum of its binary digits is even.

The product of its digits is 126000, while the sum is 40.

The square root of 551225497 is about 23478.1919448666. The cubic root of 551225497 is about 819.9293499511.

The spelling of 551225497 in words is "five hundred fifty-one million, two hundred twenty-five thousand, four hundred ninety-seven".