55545433 has 2 divisors, whose sum is σ = 55545434. Its totient is φ = 55545432.

The previous prime is 55545421. The next prime is 55545467. The reversal of 55545433 is 33454555.

It is an a-pointer prime, because the next prime (55545467) can be obtained adding 55545433 to its sum of digits (34).

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 37295449 + 18249984 = 6107^2 + 4272^2 .

It is a cyclic number.

It is not a de Polignac number, because 55545433 - 2¹³ = 55537241 is a prime.

It is not a weakly prime, because it can be changed into another prime (55545403) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 27772716 + 27772717.

It is an arithmetic number, because the mean of its divisors is an integer number (27772717).

Almost surely, 2^55545433 is an apocalyptic number.

It is an amenable number.

55545433 is a deficient number, since it is larger than the sum of its proper divisors (1).

55545433 is an equidigital number, since it uses as much as digits as its factorization.

55545433 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 90000, while the sum is 34.

The square root of 55545433 is about 7452.8808523953. The cubic root of 55545433 is about 381.5482379097.

Adding to 55545433 its reverse (33454555), we get a palindrome (88999988).

The spelling of 55545433 in words is "fifty-five million, five hundred forty-five thousand, four hundred thirty-three".