55260220 has 12 divisors (see below), whose sum is σ = 116046504. Its totient is φ = 22104080.

The previous prime is 55260211. The next prime is 55260239. The reversal of 55260220 is 2206255.

55260220 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a junction number, because it is equal to n+sod(n) for n = 55260191 and 55260200.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1381486 + ... + 1381525.

It is an arithmetic number, because the mean of its divisors is an integer number (9670542).

Almost surely, 2^55260220 is an apocalyptic number.

It is an amenable number.

55260220 is an abundant number, since it is smaller than the sum of its proper divisors (60786284).

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

55260220 is a wasteful number, since it uses less digits than its factorization.

55260220 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2763020 (or 2763018 counting only the distinct ones).

The product of its (nonzero) digits is 1200, while the sum is 22.

The square root of 55260220 is about 7433.7218134660. The cubic root of 55260220 is about 380.8940628536.

Adding to 55260220 its reverse (2206255), we get a palindrome (57466475).

The spelling of 55260220 in words is "fifty-five million, two hundred sixty thousand, two hundred twenty".