55445122 has 4 divisors (see below), whose sum is σ = 83167686. Its totient is φ = 27722560.

The previous prime is 55445119. The next prime is 55445141. The reversal of 55445122 is 22154455.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 22154455 = 5 ⋅4430891.

It can be written as a sum of positive squares in only one way, i.e., 48149721 + 7295401 = 6939^2 + 2701^2 .

It is a super-3 number, since 3×55445122³ (a number of 24 digits) contains 333 as substring.

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 13861279 + ... + 13861282.

Almost surely, 2^55445122 is an apocalyptic number.

55445122 is a deficient number, since it is larger than the sum of its proper divisors (27722564).

55445122 is a wasteful number, since it uses less digits than its factorization.

55445122 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 27722563.

The product of its digits is 8000, while the sum is 28.

The square root of 55445122 is about 7446.1481317524. The cubic root of 55445122 is about 381.3184167461.

Adding to 55445122 its reverse (22154455), we get a palindrome (77599577).

The spelling of 55445122 in words is "fifty-five million, four hundred forty-five thousand, one hundred twenty-two".