551100050999 has 2 divisors, whose sum is σ = 551100051000. Its totient is φ = 551100050998.

The previous prime is 551100050947. The next prime is 551100051011. The reversal of 551100050999 is 999050001155.

It is a happy number.

It is a strong prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-551100050999 is a prime.

It is a super-2 number, since 2×551100050999² (a number of 24 digits) contains 22 as substring.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (551100050939) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 275550025499 + 275550025500.

It is an arithmetic number, because the mean of its divisors is an integer number (275550025500).

Almost surely, 2^551100050999 is an apocalyptic number.

551100050999 is a deficient number, since it is larger than the sum of its proper divisors (1).

551100050999 is an equidigital number, since it uses as much as digits as its factorization.

551100050999 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 91125, while the sum is 44.

The spelling of 551100050999 in words is "five hundred fifty-one billion, one hundred million, fifty thousand, nine hundred ninety-nine".