55558535 has 4 divisors (see below), whose sum is σ = 66670248. Its totient is φ = 44446824.

The previous prime is 55558513. The next prime is 55558543. The reversal of 55558535 is 53585555.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 55558535 - 2¹⁰ = 55557511 is a prime.

It is a super-2 number, since 2×55558535² = 6173501622692450, which contains 22 as substring.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 55558492 and 55558501.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 5555849 + ... + 5555858.

It is an arithmetic number, because the mean of its divisors is an integer number (16667562).

Almost surely, 2^55558535 is an apocalyptic number.

55558535 is a deficient number, since it is larger than the sum of its proper divisors (11111713).

55558535 is a wasteful number, since it uses less digits than its factorization.

55558535 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 11111712.

The product of its digits is 375000, while the sum is 41.

The square root of 55558535 is about 7453.7597895290. The cubic root of 55558535 is about 381.5782352875.

The spelling of 55558535 in words is "fifty-five million, five hundred fifty-eight thousand, five hundred thirty-five".