55722127 has 2 divisors, whose sum is σ = 55722128. Its totient is φ = 55722126.

The previous prime is 55722113. The next prime is 55722131. The reversal of 55722127 is 72122755.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 55722127 - 2¹⁹ = 55197839 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (55722167) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 27861063 + 27861064.

It is an arithmetic number, because the mean of its divisors is an integer number (27861064).

Almost surely, 2^55722127 is an apocalyptic number.

55722127 is a deficient number, since it is larger than the sum of its proper divisors (1).

55722127 is an equidigital number, since it uses as much as digits as its factorization.

55722127 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 9800, while the sum is 31.

The square root of 55722127 is about 7464.7255140427. The cubic root of 55722127 is about 381.9523870922.

The spelling of 55722127 in words is "fifty-five million, seven hundred twenty-two thousand, one hundred twenty-seven".