55228436 has 6 divisors (see below), whose sum is σ = 96649770. Its totient is φ = 27614216.

The previous prime is 55228429. The next prime is 55228463. The reversal of 55228436 is 63482255.

It can be written as a sum of positive squares in only one way, i.e., 38987536 + 16240900 = 6244^2 + 4030^2 .

It is a junction number, because it is equal to n+sod(n) for n = 55228396 and 55228405.

It is a congruent number.

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, 6903551 + ... + 6903558.

It is an arithmetic number, because the mean of its divisors is an integer number (16108295).

Almost surely, 2^55228436 is an apocalyptic number.

It is an amenable number.

55228436 is a deficient number, since it is larger than the sum of its proper divisors (41421334).

55228436 is a wasteful number, since it uses less digits than its factorization.

55228436 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 13807113 (or 13807111 counting only the distinct ones).

The product of its digits is 57600, while the sum is 35.

The square root of 55228436 is about 7431.5836804816. The cubic root of 55228436 is about 380.8210226166.

The spelling of 55228436 in words is "fifty-five million, two hundred twenty-eight thousand, four hundred thirty-six".