55611409906 has 16 divisors (see below), whose sum is σ = 89867066688. Its totient is φ = 25657304400.

The previous prime is 55611409897. The next prime is 55611409927. The reversal of 55611409906 is 60990411655.

It is a happy number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 324000 + ... + 464971.

It is an arithmetic number, because the mean of its divisors is an integer number (5616691668).

Almost surely, 2^55611409906 is an apocalyptic number.

55611409906 is a deficient number, since it is larger than the sum of its proper divisors (34255656782).

55611409906 is a wasteful number, since it uses less digits than its factorization.

55611409906 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 791697.

The product of its (nonzero) digits is 291600, while the sum is 46.

The spelling of 55611409906 in words is "fifty-five billion, six hundred eleven million, four hundred nine thousand, nine hundred six".