55122056 has 32 divisors (see below), whose sum is σ = 113050080. Its totient is φ = 24988800.

The previous prime is 55122037. The next prime is 55122077. The reversal of 55122056 is 65022155.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 49700 + ... + 50796.

It is an arithmetic number, because the mean of its divisors is an integer number (3532815).

Almost surely, 2^55122056 is an apocalyptic number.

It is an amenable number.

55122056 is an abundant number, since it is smaller than the sum of its proper divisors (57928024).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

55122056 is a wasteful number, since it uses less digits than its factorization.

55122056 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1685 (or 1681 counting only the distinct ones).

The product of its (nonzero) digits is 3000, while the sum is 26.

The square root of 55122056 is about 7424.4229405389. The cubic root of 55122056 is about 380.5763553027.

Subtracting 55122056 from its reverse (65022155), we obtain a palindrome (9900099).

The spelling of 55122056 in words is "fifty-five million, one hundred twenty-two thousand, fifty-six".