550213451257 has 2 divisors, whose sum is σ = 550213451258. Its totient is φ = 550213451256.

The previous prime is 550213451231. The next prime is 550213451297. The reversal of 550213451257 is 752154312055.

It is an a-pointer prime, because the next prime (550213451297) can be obtained adding 550213451257 to its sum of digits (40).

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 499256709561 + 50956741696 = 706581^2 + 225736^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-550213451257 is a prime.

It is a super-2 number, since 2×550213451257² (a number of 24 digits) contains 22 as substring.

It is not a weakly prime, because it can be changed into another prime (550213451297) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 275106725628 + 275106725629.

It is an arithmetic number, because the mean of its divisors is an integer number (275106725629).

Almost surely, 2^550213451257 is an apocalyptic number.

It is an amenable number.

550213451257 is a deficient number, since it is larger than the sum of its proper divisors (1).

550213451257 is an equidigital number, since it uses as much as digits as its factorization.

550213451257 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 210000, while the sum is 40.

The spelling of 550213451257 in words is "five hundred fifty billion, two hundred thirteen million, four hundred fifty-one thousand, two hundred fifty-seven".