55623349 has 2 divisors, whose sum is σ = 55623350. Its totient is φ = 55623348.

The previous prime is 55623329. The next prime is 55623353. The reversal of 55623349 is 94332655.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 54316900 + 1306449 = 7370^2 + 1143^2 .

It is a cyclic number.

It is not a de Polignac number, because 55623349 - 2⁷ = 55623221 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (55623329) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 27811674 + 27811675.

It is an arithmetic number, because the mean of its divisors is an integer number (27811675).

Almost surely, 2^55623349 is an apocalyptic number.

It is an amenable number.

55623349 is a deficient number, since it is larger than the sum of its proper divisors (1).

55623349 is an equidigital number, since it uses as much as digits as its factorization.

55623349 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 97200, while the sum is 37.

The square root of 55623349 is about 7458.1062609754. The cubic root of 55623349 is about 381.7265593374.

It can be divided in two parts, 5562 and 3349, that added together give a triangular number (8911 = T₁₃₃).

The spelling of 55623349 in words is "fifty-five million, six hundred twenty-three thousand, three hundred forty-nine".