55939025906 has 4 divisors (see below), whose sum is σ = 83908538862. Its totient is φ = 27969512952.

The previous prime is 55939025893. The next prime is 55939025911. The reversal of 55939025906 is 60952093955.

It is a happy number.

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., 52077522025 + 3861503881 = 228205^2 + 62141^2 .

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 13984756475 + ... + 13984756478.

Almost surely, 2^55939025906 is an apocalyptic number.

55939025906 is a deficient number, since it is larger than the sum of its proper divisors (27969512956).

55939025906 is a wasteful number, since it uses less digits than its factorization.

55939025906 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 27969512955.

The product of its (nonzero) digits is 3280500, while the sum is 53.

The spelling of 55939025906 in words is "fifty-five billion, nine hundred thirty-nine million, twenty-five thousand, nine hundred six".