55595906 has 4 divisors (see below), whose sum is σ = 83393862. Its totient is φ = 27797952.

The previous prime is 55595893. The next prime is 55595909. The reversal of 55595906 is 60959555.

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

It can be written as a sum of positive squares in only one way, i.e., 28462225 + 27133681 = 5335^2 + 5209^2 .

It is not an unprimeable number, because it can be changed into a prime (55595909) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 13898975 + ... + 13898978.

Almost surely, 2^55595906 is an apocalyptic number.

55595906 is a deficient number, since it is larger than the sum of its proper divisors (27797956).

55595906 is a wasteful number, since it uses less digits than its factorization.

55595906 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 27797955.

The product of its (nonzero) digits is 303750, while the sum is 44.

The square root of 55595906 is about 7456.2662237879. The cubic root of 55595906 is about 381.6637712850.

The spelling of 55595906 in words is "fifty-five million, five hundred ninety-five thousand, nine hundred six".