55162279 has 2 divisors, whose sum is σ = 55162280. Its totient is φ = 55162278.

The previous prime is 55162277. The next prime is 55162291. The reversal of 55162279 is 97226155.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 55162279 - 2¹ = 55162277 is a prime.

Together with 55162277, it forms a pair of twin primes.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (55162273) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 27581139 + 27581140.

It is an arithmetic number, because the mean of its divisors is an integer number (27581140).

Almost surely, 2^55162279 is an apocalyptic number.

55162279 is a deficient number, since it is larger than the sum of its proper divisors (1).

55162279 is an equidigital number, since it uses as much as digits as its factorization.

55162279 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 37800, while the sum is 37.

The square root of 55162279 is about 7427.1312766101. The cubic root of 55162279 is about 380.6689026538.

The spelling of 55162279 in words is "fifty-five million, one hundred sixty-two thousand, two hundred seventy-nine".