55622471 has 2 divisors, whose sum is σ = 55622472. Its totient is φ = 55622470.

The previous prime is 55622467. The next prime is 55622473. The reversal of 55622471 is 17422655.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 55622471 - 2² = 55622467 is a prime.

It is a super-3 number, since 3×55622471³ (a number of 24 digits) contains 333 as substring.

Together with 55622473, it forms a pair of twin primes.

It is a Chen prime.

It is equal to p_3317099 and since 55622471 and 3317099 have the same sum of digits, it is a Honaker prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (55622473) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 27811235 + 27811236.

It is an arithmetic number, because the mean of its divisors is an integer number (27811236).

Almost surely, 2^55622471 is an apocalyptic number.

55622471 is a deficient number, since it is larger than the sum of its proper divisors (1).

55622471 is an equidigital number, since it uses as much as digits as its factorization.

55622471 is an evil number, because the sum of its binary digits is even.

The product of its digits is 16800, while the sum is 32.

The square root of 55622471 is about 7458.0473986158. The cubic root of 55622471 is about 381.7245508423.

The spelling of 55622471 in words is "fifty-five million, six hundred twenty-two thousand, four hundred seventy-one".