55905841 has 2 divisors, whose sum is σ = 55905842. Its totient is φ = 55905840.

The previous prime is 55905833. The next prime is 55905901. The reversal of 55905841 is 14850955.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 55815841 + 90000 = 7471^2 + 300^2 .

It is a cyclic number.

It is not a de Polignac number, because 55905841 - 2³ = 55905833 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 55905841.

It is not a weakly prime, because it can be changed into another prime (55905821) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 27952920 + 27952921.

It is an arithmetic number, because the mean of its divisors is an integer number (27952921).

Almost surely, 2^55905841 is an apocalyptic number.

It is an amenable number.

55905841 is a deficient number, since it is larger than the sum of its proper divisors (1).

55905841 is an equidigital number, since it uses as much as digits as its factorization.

55905841 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 36000, while the sum is 37.

The square root of 55905841 is about 7477.0208639538. The cubic root of 55905841 is about 382.3716880624.

The spelling of 55905841 in words is "fifty-five million, nine hundred five thousand, eight hundred forty-one".