55422293 has 2 divisors, whose sum is σ = 55422294. Its totient is φ = 55422292.

The previous prime is 55422271. The next prime is 55422317. The reversal of 55422293 is 39222455.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 36699364 + 18722929 = 6058^2 + 4327^2 .

It is a cyclic number.

It is not a de Polignac number, because 55422293 - 2⁶ = 55422229 is a prime.

It is a super-2 number, since 2×55422293² = 6143261122755698, which contains 22 as substring.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (55422593) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 27711146 + 27711147.

It is an arithmetic number, because the mean of its divisors is an integer number (27711147).

Almost surely, 2^55422293 is an apocalyptic number.

It is an amenable number.

55422293 is a deficient number, since it is larger than the sum of its proper divisors (1).

55422293 is an equidigital number, since it uses as much as digits as its factorization.

55422293 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 21600, while the sum is 32.

The square root of 55422293 is about 7444.6150337005. The cubic root of 55422293 is about 381.2660748216.

The spelling of 55422293 in words is "fifty-five million, four hundred twenty-two thousand, two hundred ninety-three".