55511213534 has 128 divisors (see below), whose sum is σ = 104971852800. Its totient is φ = 21480007680.

The previous prime is 55511213521. The next prime is 55511213587. The reversal of 55511213534 is 43531211555.

It is a junction number, because it is equal to n+sod(n) for n = 55511213494 and 55511213503.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 63 ways as a sum of consecutive naturals, for example, 196152557 + ... + 196152839.

It is an arithmetic number, because the mean of its divisors is an integer number (820092600).

Almost surely, 2^55511213534 is an apocalyptic number.

55511213534 is a deficient number, since it is larger than the sum of its proper divisors (49460639266).

55511213534 is a wasteful number, since it uses less digits than its factorization.

55511213534 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 658.

The product of its digits is 45000, while the sum is 35.

The spelling of 55511213534 in words is "fifty-five billion, five hundred eleven million, two hundred thirteen thousand, five hundred thirty-four".