55856293 has 2 divisors, whose sum is σ = 55856294. Its totient is φ = 55856292.

The previous prime is 55856267. The next prime is 55856321. The reversal of 55856293 is 39265855.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 50936769 + 4919524 = 7137^2 + 2218^2 .

It is a cyclic number.

It is not a de Polignac number, because 55856293 - 2¹³ = 55848101 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (55856263) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 27928146 + 27928147.

It is an arithmetic number, because the mean of its divisors is an integer number (27928147).

Almost surely, 2^55856293 is an apocalyptic number.

It is an amenable number.

55856293 is a deficient number, since it is larger than the sum of its proper divisors (1).

55856293 is an equidigital number, since it uses as much as digits as its factorization.

55856293 is an evil number, because the sum of its binary digits is even.

The product of its digits is 324000, while the sum is 43.

The square root of 55856293 is about 7473.7067777643. The cubic root of 55856293 is about 382.2586924023.

The spelling of 55856293 in words is "fifty-five million, eight hundred fifty-six thousand, two hundred ninety-three".