55816575 has 12 divisors (see below), whose sum is σ = 92283528. Its totient is φ = 29768800.

The previous prime is 55816567. The next prime is 55816583. The reversal of 55816575 is 57561855.

It is an interprime number because it is at equal distance from previous prime (55816567) and next prime (55816583).

It is not a de Polignac number, because 55816575 - 2³ = 55816567 is a prime.

It is a congruent number.

It is an unprimeable number.

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 11 ways as a sum of consecutive naturals, for example, 372036 + ... + 372185.

It is an arithmetic number, because the mean of its divisors is an integer number (7690294).

Almost surely, 2^55816575 is an apocalyptic number.

55816575 is a deficient number, since it is larger than the sum of its proper divisors (36466953).

55816575 is a wasteful number, since it uses less digits than its factorization.

55816575 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 744234 (or 744229 counting only the distinct ones).

The product of its digits is 210000, while the sum is 42.

The square root of 55816575 is about 7471.0491231152. The cubic root of 55816575 is about 382.1680660826.

The spelling of 55816575 in words is "fifty-five million, eight hundred sixteen thousand, five hundred seventy-five".