55665265858 has 4 divisors (see below), whose sum is σ = 83497898790. Its totient is φ = 27832632928.

The previous prime is 55665265841. The next prime is 55665265867. The reversal of 55665265858 is 85856256655.

It is a happy number.

55665265858 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

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., 54141378489 + 1523887369 = 232683^2 + 39037^2 .

It is a junction number, because it is equal to n+sod(n) for n = 55665265796 and 55665265805.

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 13916316463 + ... + 13916316466.

Almost surely, 2^55665265858 is an apocalyptic number.

55665265858 is a deficient number, since it is larger than the sum of its proper divisors (27832632932).

55665265858 is a wasteful number, since it uses less digits than its factorization.

55665265858 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 27832632931.

The product of its digits is 86400000, while the sum is 61.

The spelling of 55665265858 in words is "fifty-five billion, six hundred sixty-five million, two hundred sixty-five thousand, eight hundred fifty-eight".