55179647 has 2 divisors, whose sum is σ = 55179648. Its totient is φ = 55179646.

The previous prime is 55179587. The next prime is 55179661. The reversal of 55179647 is 74697155.

It is a strong prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-55179647 is a prime.

It is a Chen prime.

It is a junction number, because it is equal to n+sod(n) for n = 55179598 and 55179607.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (55179697) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 27589823 + 27589824.

It is an arithmetic number, because the mean of its divisors is an integer number (27589824).

Almost surely, 2^55179647 is an apocalyptic number.

55179647 is a deficient number, since it is larger than the sum of its proper divisors (1).

55179647 is an equidigital number, since it uses as much as digits as its factorization.

55179647 is an evil number, because the sum of its binary digits is even.

The product of its digits is 264600, while the sum is 44.

The square root of 55179647 is about 7428.3004112650. The cubic root of 55179647 is about 380.7088500229.

The spelling of 55179647 in words is "fifty-five million, one hundred seventy-nine thousand, six hundred forty-seven".