55093561 has 2 divisors, whose sum is σ = 55093562. Its totient is φ = 55093560.

The previous prime is 55093543. The next prime is 55093601. The reversal of 55093561 is 16539055.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 44302336 + 10791225 = 6656^2 + 3285^2 .

It is a cyclic number.

It is not a de Polignac number, because 55093561 - 2⁵ = 55093529 is a prime.

It is not a weakly prime, because it can be changed into another prime (55093531) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 27546780 + 27546781.

It is an arithmetic number, because the mean of its divisors is an integer number (27546781).

Almost surely, 2^55093561 is an apocalyptic number.

It is an amenable number.

55093561 is a deficient number, since it is larger than the sum of its proper divisors (1).

55093561 is an equidigital number, since it uses as much as digits as its factorization.

55093561 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 20250, while the sum is 34.

The square root of 55093561 is about 7422.5036881096. The cubic root of 55093561 is about 380.5107651486.

The spelling of 55093561 in words is "fifty-five million, ninety-three thousand, five hundred sixty-one".