55561173434 has 16 divisors (see below), whose sum is σ = 94476490080. Its totient is φ = 24293954160.

The previous prime is 55561173407. The next prime is 55561173497. The reversal of 55561173434 is 43437116555.

It is a Curzon 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, 56235512 + ... + 56236499.

It is an arithmetic number, because the mean of its divisors is an integer number (5904780630).

Almost surely, 2^55561173434 is an apocalyptic number.

55561173434 is a deficient number, since it is larger than the sum of its proper divisors (38915316646).

55561173434 is a wasteful number, since it uses less digits than its factorization.

55561173434 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 112472045.

The product of its digits is 756000, while the sum is 44.

Adding to 55561173434 its reverse (43437116555), we get a palindrome (98998289989).

The spelling of 55561173434 in words is "fifty-five billion, five hundred sixty-one million, one hundred seventy-three thousand, four hundred thirty-four".