55200146 has 16 divisors (see below), whose sum is σ = 84284928. Its totient is φ = 27109200.

The previous prime is 55200143. The next prime is 55200151. The reversal of 55200146 is 64100255.

It is a super-2 number, since 2×55200146² = 6094112236842632, which contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (55200143) by changing a digit.

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 in 7 ways as a sum of consecutive naturals, for example, 30836 + ... + 32576.

It is an arithmetic number, because the mean of its divisors is an integer number (5267808).

Almost surely, 2^55200146 is an apocalyptic number.

55200146 is a deficient number, since it is larger than the sum of its proper divisors (29084782).

55200146 is a wasteful number, since it uses less digits than its factorization.

55200146 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2017.

The product of its (nonzero) digits is 1200, while the sum is 23.

The square root of 55200146 is about 7429.6800738659. The cubic root of 55200146 is about 380.7559880827.

The spelling of 55200146 in words is "fifty-five million, two hundred thousand, one hundred forty-six".