55196728 has 16 divisors (see below), whose sum is σ = 104445000. Its totient is φ = 27344736.

The previous prime is 55196723. The next prime is 55196731. The reversal of 55196728 is 82769155.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (55196723) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 30778 + ... + 32521.

Almost surely, 2^55196728 is an apocalyptic number.

It is an amenable number.

55196728 is a deficient number, since it is larger than the sum of its proper divisors (49248272).

55196728 is a wasteful number, since it uses less digits than its factorization.

55196728 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 63414 (or 63410 counting only the distinct ones).

The product of its digits is 151200, while the sum is 43.

The square root of 55196728 is about 7429.4500469416. The cubic root of 55196728 is about 380.7481291009.

It can be divided in two parts, 551 and 96728, that added together give a palindrome (97279).

The spelling of 55196728 in words is "fifty-five million, one hundred ninety-six thousand, seven hundred twenty-eight".