55501321234 has 16 divisors (see below), whose sum is σ = 88153940088. Its totient is φ = 26116851712.

The previous prime is 55501321219. The next prime is 55501321241. The reversal of 55501321234 is 43212310555.

It can be written as a sum of positive squares in 4 ways, for example, as 26515237225 + 28986084009 = 162835^2 + 170253^2 .

It is a junction number, because it is equal to n+sod(n) for n = 55501321196 and 55501321205.

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, 857994 + ... + 920410.

Almost surely, 2^55501321234 is an apocalyptic number.

55501321234 is a deficient number, since it is larger than the sum of its proper divisors (32652618854).

55501321234 is a wasteful number, since it uses less digits than its factorization.

55501321234 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 88589.

The product of its (nonzero) digits is 18000, while the sum is 31.

Adding to 55501321234 its reverse (43212310555), we get a palindrome (98713631789).

The spelling of 55501321234 in words is "fifty-five billion, five hundred one million, three hundred twenty-one thousand, two hundred thirty-four".