55894747 has 2 divisors, whose sum is σ = 55894748. Its totient is φ = 55894746.

The previous prime is 55894739. The next prime is 55894757. The reversal of 55894747 is 74749855.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 55894747 - 2³ = 55894739 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 55894747.

It is not a weakly prime, because it can be changed into another prime (55894717) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 27947373 + 27947374.

It is an arithmetic number, because the mean of its divisors is an integer number (27947374).

Almost surely, 2^55894747 is an apocalyptic number.

55894747 is a deficient number, since it is larger than the sum of its proper divisors (1).

55894747 is an equidigital number, since it uses as much as digits as its factorization.

55894747 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 1411200, while the sum is 49.

The square root of 55894747 is about 7476.2789541322. The cubic root of 55894747 is about 382.3463936742.

The spelling of 55894747 in words is "fifty-five million, eight hundred ninety-four thousand, seven hundred forty-seven".