551244511373 has 2 divisors, whose sum is σ = 551244511374. Its totient is φ = 551244511372.

The previous prime is 551244511369. The next prime is 551244511417. The reversal of 551244511373 is 373115442155.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 339868012324 + 211376499049 = 582982^2 + 459757^2 .

It is a cyclic number.

It is not a de Polignac number, because 551244511373 - 2² = 551244511369 is a prime.

It is a super-2 number, since 2×551244511373² (a number of 24 digits) contains 22 as substring.

It is a self number, because there is not a number n which added to its sum of digits gives 551244511373.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (551244511313) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 275622255686 + 275622255687.

It is an arithmetic number, because the mean of its divisors is an integer number (275622255687).

Almost surely, 2^551244511373 is an apocalyptic number.

It is an amenable number.

551244511373 is a deficient number, since it is larger than the sum of its proper divisors (1).

551244511373 is an equidigital number, since it uses as much as digits as its factorization.

551244511373 is an evil number, because the sum of its binary digits is even.

The product of its digits is 252000, while the sum is 41.

The spelling of 551244511373 in words is "five hundred fifty-one billion, two hundred forty-four million, five hundred eleven thousand, three hundred seventy-three".