55609375 has 14 divisors (see below), whose sum is σ = 69530360. Its totient is φ = 44475000.

The previous prime is 55609373. The next prime is 55609439. The reversal of 55609375 is 57390655.

It is not a de Polignac number, because 55609375 - 2¹ = 55609373 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (55609373) 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 13 ways as a sum of consecutive naturals, for example, 13846 + ... + 17404.

Almost surely, 2^55609375 is an apocalyptic number.

55609375 is a deficient number, since it is larger than the sum of its proper divisors (13920985).

55609375 is an frugal number, since it uses more digits than its factorization.

55609375 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3589 (or 3564 counting only the distinct ones).

The product of its (nonzero) digits is 141750, while the sum is 40.

The square root of 55609375 is about 7457.1693691373. The cubic root of 55609375 is about 381.6945901866.

The spelling of 55609375 in words is "fifty-five million, six hundred nine thousand, three hundred seventy-five".