55572443 has 2 divisors, whose sum is σ = 55572444. Its totient is φ = 55572442.

The previous prime is 55572373. The next prime is 55572463. The reversal of 55572443 is 34427555.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 55572443 - 2²⁰ = 54523867 is a prime.

It is a Chen prime.

It is not a weakly prime, because it can be changed into another prime (55572463) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 27786221 + 27786222.

It is an arithmetic number, because the mean of its divisors is an integer number (27786222).

Almost surely, 2^55572443 is an apocalyptic number.

55572443 is a deficient number, since it is larger than the sum of its proper divisors (1).

55572443 is an equidigital number, since it uses as much as digits as its factorization.

55572443 is an evil number, because the sum of its binary digits is even.

The product of its digits is 84000, while the sum is 35.

The square root of 55572443 is about 7454.6926831359. The cubic root of 55572443 is about 381.6100728640.

Adding to 55572443 its reverse (34427555), we get a palindrome (89999998).

It can be divided in two parts, 5557 and 2443, that added together give a cube (8000 = 20³).

The spelling of 55572443 in words is "fifty-five million, five hundred seventy-two thousand, four hundred forty-three".