55505146 has 16 divisors (see below), whose sum is σ = 84559104. Its totient is φ = 27321984.

The previous prime is 55505129. The next prime is 55505161. The reversal of 55505146 is 64150555.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 42621 + ... + 43903.

It is an arithmetic number, because the mean of its divisors is an integer number (5284944).

Almost surely, 2^55505146 is an apocalyptic number.

55505146 is a deficient number, since it is larger than the sum of its proper divisors (29053958).

55505146 is a wasteful number, since it uses less digits than its factorization.

55505146 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1605.

The product of its (nonzero) digits is 15000, while the sum is 31.

The square root of 55505146 is about 7450.1775817762. The cubic root of 55505146 is about 381.4559701881.

The spelling of 55505146 in words is "fifty-five million, five hundred five thousand, one hundred forty-six".