55912135 has 4 divisors (see below), whose sum is σ = 67094568. Its totient is φ = 44729704.

The previous prime is 55912111. The next prime is 55912139. The reversal of 55912135 is 53121955.

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

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-55912135 is a prime.

It is a Smith number, since the sum of its digits (31) coincides with the sum of the digits of its prime factors. Since it is squarefree, it is also a hoax number.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 55912097 and 55912106.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (55912139) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 5591209 + ... + 5591218.

It is an arithmetic number, because the mean of its divisors is an integer number (16773642).

Almost surely, 2^55912135 is an apocalyptic number.

55912135 is a deficient number, since it is larger than the sum of its proper divisors (11182433).

55912135 is a wasteful number, since it uses less digits than its factorization.

55912135 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 11182432.

The product of its digits is 6750, while the sum is 31.

The square root of 55912135 is about 7477.4417416654. The cubic root of 55912135 is about 382.3860369333.

The spelling of 55912135 in words is "fifty-five million, nine hundred twelve thousand, one hundred thirty-five".