551340010997 has 2 divisors, whose sum is σ = 551340010998. Its totient is φ = 551340010996.

The previous prime is 551340010987. The next prime is 551340011009. The reversal of 551340010997 is 799010043155.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 545531437201 + 5808573796 = 738601^2 + 76214^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-551340010997 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (551340010927) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 275670005498 + 275670005499.

It is an arithmetic number, because the mean of its divisors is an integer number (275670005499).

Almost surely, 2^551340010997 is an apocalyptic number.

It is an amenable number.

551340010997 is a deficient number, since it is larger than the sum of its proper divisors (1).

551340010997 is an equidigital number, since it uses as much as digits as its factorization.

551340010997 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 170100, while the sum is 44.

The spelling of 551340010997 in words is "five hundred fifty-one billion, three hundred forty million, ten thousand, nine hundred ninety-seven".