55645929 has 12 divisors (see below), whose sum is σ = 81479476. Its totient is φ = 36588672.

The previous prime is 55645907. The next prime is 55645937. The reversal of 55645929 is 92954655.

It is a happy number.

55645929 is a `hidden beast` number, since 5 + 56 + 4 + 592 + 9 = 666.

55645929 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It can be written as a sum of positive squares in 2 ways, for example, as 48274704 + 7371225 = 6948^2 + 2715^2 .

It is not a de Polignac number, because 55645929 - 2⁷ = 55645801 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (55645949) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 41692 + ... + 43005.

Almost surely, 2^55645929 is an apocalyptic number.

It is an amenable number.

55645929 is a deficient number, since it is larger than the sum of its proper divisors (25833547).

55645929 is a wasteful number, since it uses less digits than its factorization.

55645929 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 84776 (or 84773 counting only the distinct ones).

The product of its digits is 486000, while the sum is 45.

The square root of 55645929 is about 7459.6198964827. The cubic root of 55645929 is about 381.7782056322.

The spelling of 55645929 in words is "fifty-five million, six hundred forty-five thousand, nine hundred twenty-nine".