55856113 has 2 divisors, whose sum is σ = 55856114. Its totient is φ = 55856112.

The previous prime is 55856111. The next prime is 55856147. The reversal of 55856113 is 31165855.

It is an a-pointer prime, because the next prime (55856147) can be obtained adding 55856113 to its sum of digits (34).

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 43125489 + 12730624 = 6567^2 + 3568^2 .

It is a cyclic number.

It is not a de Polignac number, because 55856113 - 2¹ = 55856111 is a prime.

Together with 55856111, it forms a pair of twin primes.

It is not a weakly prime, because it can be changed into another prime (55856111) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 27928056 + 27928057.

It is an arithmetic number, because the mean of its divisors is an integer number (27928057).

Almost surely, 2^55856113 is an apocalyptic number.

It is an amenable number.

55856113 is a deficient number, since it is larger than the sum of its proper divisors (1).

55856113 is an equidigital number, since it uses as much as digits as its factorization.

55856113 is an evil number, because the sum of its binary digits is even.

The product of its digits is 18000, while the sum is 34.

The square root of 55856113 is about 7473.6947355374. The cubic root of 55856113 is about 382.2582817853.

The spelling of 55856113 in words is "fifty-five million, eight hundred fifty-six thousand, one hundred thirteen".