55021296 has 40 divisors (see below), whose sum is σ = 155061504. Its totient is φ = 16672960.

The previous prime is 55021289. The next prime is 55021297. The reversal of 55021296 is 69212055.

It is a happy number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (55021297) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 51576 + ... + 52631.

Almost surely, 2^55021296 is an apocalyptic number.

It is an amenable number.

55021296 is an abundant number, since it is smaller than the sum of its proper divisors (100040208).

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

55021296 is a wasteful number, since it uses less digits than its factorization.

55021296 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 104229 (or 104223 counting only the distinct ones).

The product of its (nonzero) digits is 5400, while the sum is 30.

The square root of 55021296 is about 7417.6341241665. The cubic root of 55021296 is about 380.3443231822.

The spelling of 55021296 in words is "fifty-five million, twenty-one thousand, two hundred ninety-six".