55032621227 has 2 divisors, whose sum is σ = 55032621228. Its totient is φ = 55032621226.

The previous prime is 55032621121. The next prime is 55032621229. The reversal of 55032621227 is 72212623055.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 55032621227 - 2⁸ = 55032620971 is a prime.

It is a super-2 number, since 2×55032621227² (a number of 22 digits) contains 22 as substring.

Together with 55032621229, it forms a pair of twin primes.

It is a Chen prime.

It is not a weakly prime, because it can be changed into another prime (55032621229) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 27516310613 + 27516310614.

It is an arithmetic number, because the mean of its divisors is an integer number (27516310614).

Almost surely, 2^55032621227 is an apocalyptic number.

55032621227 is a deficient number, since it is larger than the sum of its proper divisors (1).

55032621227 is an equidigital number, since it uses as much as digits as its factorization.

55032621227 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 50400, while the sum is 35.

The spelling of 55032621227 in words is "fifty-five billion, thirty-two million, six hundred twenty-one thousand, two hundred twenty-seven".