55894879 has 2 divisors, whose sum is σ = 55894880. Its totient is φ = 55894878.

The previous prime is 55894877. The next prime is 55894897. The reversal of 55894879 is 97849855.

Together with next prime (55894897) it forms an Ormiston pair, because they use the same digits, order apart.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 55894879 - 2¹ = 55894877 is a prime.

Together with 55894877, 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 (55894871) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 27947439 + 27947440.

It is an arithmetic number, because the mean of its divisors is an integer number (27947440).

Almost surely, 2^55894879 is an apocalyptic number.

55894879 is a deficient number, since it is larger than the sum of its proper divisors (1).

55894879 is an equidigital number, since it uses as much as digits as its factorization.

55894879 is an evil number, because the sum of its binary digits is even.

The product of its digits is 3628800, while the sum is 55.

The square root of 55894879 is about 7476.2877820480. The cubic root of 55894879 is about 382.3466946547.

It can be divided in two parts, 5589487 and 9, that added together give a triangular number (5589496 = T₃₃₄₃).

The spelling of 55894879 in words is "fifty-five million, eight hundred ninety-four thousand, eight hundred seventy-nine".