55375605 has 24 divisors (see below), whose sum is σ = 100159488. Its totient is φ = 28249056.

The previous prime is 55375601. The next prime is 55375609. The reversal of 55375605 is 50657355.

It is an interprime number because it is at equal distance from previous prime (55375601) and next prime (55375609).

It is not a de Polignac number, because 55375605 - 2² = 55375601 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 55375605.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (55375601) 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 23 ways as a sum of consecutive naturals, for example, 25717 + ... + 27786.

It is an arithmetic number, because the mean of its divisors is an integer number (4173312).

Almost surely, 2^55375605 is an apocalyptic number.

It is an amenable number.

55375605 is a deficient number, since it is larger than the sum of its proper divisors (44783883).

55375605 is a wasteful number, since it uses less digits than its factorization.

55375605 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 53537 (or 53534 counting only the distinct ones).

The product of its (nonzero) digits is 78750, while the sum is 36.

The square root of 55375605 is about 7441.4786837026. The cubic root of 55375605 is about 381.1589846340.

The spelling of 55375605 in words is "fifty-five million, three hundred seventy-five thousand, six hundred five".