55626775 has 12 divisors (see below), whose sum is σ = 72608200. Its totient is φ = 42158880.

The previous prime is 55626773. The next prime is 55626787. The reversal of 55626775 is 57762655.

55626775 is nontrivially palindromic in base 4.

It is not a de Polignac number, because 55626775 - 2¹ = 55626773 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (55626773) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 58080 + ... + 59029.

Almost surely, 2^55626775 is an apocalyptic number.

55626775 is a deficient number, since it is larger than the sum of its proper divisors (16981425).

55626775 is a wasteful number, since it uses less digits than its factorization.

55626775 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 117138 (or 117133 counting only the distinct ones).

The product of its digits is 441000, while the sum is 43.

The square root of 55626775 is about 7458.3359404092. The cubic root of 55626775 is about 381.7343963841.

The spelling of 55626775 in words is "fifty-five million, six hundred twenty-six thousand, seven hundred seventy-five".