55345522 has 4 divisors (see below), whose sum is σ = 83018286. Its totient is φ = 27672760.

The previous prime is 55345519. The next prime is 55345553. The reversal of 55345522 is 22554355.

It is a happy number.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 22554355 = 5 ⋅4510871.

It can be written as a sum of positive squares in only one way, i.e., 39576681 + 15768841 = 6291^2 + 3971^2 .

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 13836379 + ... + 13836382.

Almost surely, 2^55345522 is an apocalyptic number.

55345522 is a deficient number, since it is larger than the sum of its proper divisors (27672764).

55345522 is a wasteful number, since it uses less digits than its factorization.

55345522 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 27672763.

The product of its digits is 30000, while the sum is 31.

The square root of 55345522 is about 7439.4571038484. The cubic root of 55345522 is about 381.0899501272.

Adding to 55345522 its reverse (22554355), we get a palindrome (77899877).

The spelling of 55345522 in words is "fifty-five million, three hundred forty-five thousand, five hundred twenty-two".