55045575 has 144 divisors (see below), whose sum is σ = 119429856. Its totient is φ = 24883200.

The previous prime is 55045531. The next prime is 55045583. The reversal of 55045575 is 57554055.

It is a happy number.

It is not a de Polignac number, because 55045575 - 2⁶ = 55045511 is a prime.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 143 ways as a sum of consecutive naturals, for example, 1342555 + ... + 1342595.

It is an arithmetic number, because the mean of its divisors is an integer number (829374).

Almost surely, 2^55045575 is an apocalyptic number.

55045575 is an abundant number, since it is smaller than the sum of its proper divisors (64384281).

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

55045575 is a wasteful number, since it uses less digits than its factorization.

55045575 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 96 (or 79 counting only the distinct ones).

The product of its (nonzero) digits is 87500, while the sum is 36.

The square root of 55045575 is about 7419.2705167018. The cubic root of 55045575 is about 380.4002592322.

The spelling of 55045575 in words is "fifty-five million, forty-five thousand, five hundred seventy-five".