55945261 has 2 divisors, whose sum is σ = 55945262. Its totient is φ = 55945260.

The previous prime is 55945247. The next prime is 55945301. The reversal of 55945261 is 16254955.

55945261 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 34739236 + 21206025 = 5894^2 + 4605^2 .

It is a cyclic number.

It is not a de Polignac number, because 55945261 - 2¹³ = 55937069 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 55945261.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (55945061) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 27972630 + 27972631.

It is an arithmetic number, because the mean of its divisors is an integer number (27972631).

Almost surely, 2^55945261 is an apocalyptic number.

It is an amenable number.

55945261 is a deficient number, since it is larger than the sum of its proper divisors (1).

55945261 is an equidigital number, since it uses as much as digits as its factorization.

55945261 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 54000, while the sum is 37.

The square root of 55945261 is about 7479.6564760689. The cubic root of 55945261 is about 382.4615388443.

The spelling of 55945261 in words is "fifty-five million, nine hundred forty-five thousand, two hundred sixty-one".