55590899279 has 2 divisors, whose sum is σ = 55590899280. Its totient is φ = 55590899278.

The previous prime is 55590899267. The next prime is 55590899281. The reversal of 55590899279 is 97299809555.

It is a strong prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-55590899279 is a prime.

Together with 55590899281, it forms a pair of twin primes.

It is a Chen prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (55590899209) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 27795449639 + 27795449640.

It is an arithmetic number, because the mean of its divisors is an integer number (27795449640).

Almost surely, 2^55590899279 is an apocalyptic number.

55590899279 is a deficient number, since it is larger than the sum of its proper divisors (1).

55590899279 is an equidigital number, since it uses as much as digits as its factorization.

55590899279 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 91854000, while the sum is 68.

The spelling of 55590899279 in words is "fifty-five billion, five hundred ninety million, eight hundred ninety-nine thousand, two hundred seventy-nine".