55805575 has 12 divisors (see below), whose sum is σ = 79084720. Its totient is φ = 38266560.

The previous prime is 55805557. The next prime is 55805593. The reversal of 55805575 is 57550855.

55805575 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is an interprime number because it is at equal distance from previous prime (55805557) and next prime (55805593).

It is not a de Polignac number, because 55805575 - 2⁷ = 55805447 is a prime.

It is a super-2 number, since 2×55805575² = 6228524402161250, which contains 22 as substring.

It is a congruent number.

It is an unprimeable number.

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, 159270 + ... + 159619.

Almost surely, 2^55805575 is an apocalyptic number.

55805575 is a deficient number, since it is larger than the sum of its proper divisors (23279145).

55805575 is a wasteful number, since it uses less digits than its factorization.

55805575 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 318906 (or 318901 counting only the distinct ones).

The product of its (nonzero) digits is 175000, while the sum is 40.

The square root of 55805575 is about 7470.3129117862. The cubic root of 55805575 is about 382.1429592936.

The spelling of 55805575 in words is "fifty-five million, eight hundred five thousand, five hundred seventy-five".