55212169927 has 2 divisors, whose sum is σ = 55212169928. Its totient is φ = 55212169926.

The previous prime is 55212169919. The next prime is 55212170063. The reversal of 55212169927 is 72996121255.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 55212169927 - 2³ = 55212169919 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (55212169907) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 27606084963 + 27606084964.

It is an arithmetic number, because the mean of its divisors is an integer number (27606084964).

Almost surely, 2^55212169927 is an apocalyptic number.

55212169927 is a deficient number, since it is larger than the sum of its proper divisors (1).

55212169927 is an equidigital number, since it uses as much as digits as its factorization.

55212169927 is an evil number, because the sum of its binary digits is even.

The product of its digits is 680400, while the sum is 49.

The spelling of 55212169927 in words is "fifty-five billion, two hundred twelve million, one hundred sixty-nine thousand, nine hundred twenty-seven".