55475637 has 32 divisors (see below), whose sum is σ = 88750080. Its totient is φ = 30152640.

The previous prime is 55475603. The next prime is 55475653. The reversal of 55475637 is 73657455.

It is not a de Polignac number, because 55475637 - 2¹¹ = 55473589 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (55475677) by changing a digit.

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 31 ways as a sum of consecutive naturals, for example, 42598 + ... + 43880.

It is an arithmetic number, because the mean of its divisors is an integer number (2773440).

Almost surely, 2^55475637 is an apocalyptic number.

It is an amenable number.

55475637 is a deficient number, since it is larger than the sum of its proper divisors (33274443).

55475637 is a wasteful number, since it uses less digits than its factorization.

55475637 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1393.

The product of its digits is 441000, while the sum is 42.

The square root of 55475637 is about 7448.1968958937. The cubic root of 55475637 is about 381.3883585615.

The spelling of 55475637 in words is "fifty-five million, four hundred seventy-five thousand, six hundred thirty-seven".