55531133434 has 16 divisors (see below), whose sum is σ = 96500288448. Its totient is φ = 23473042272.

The previous prime is 55531133387. The next prime is 55531133443. The reversal of 55531133434 is 43433113555.

It is a junction number, because it is equal to n+sod(n) for n = 55531133393 and 55531133402.

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, 27166852 + ... + 27168895.

It is an arithmetic number, because the mean of its divisors is an integer number (6031268028).

Almost surely, 2^55531133434 is an apocalyptic number.

55531133434 is a deficient number, since it is larger than the sum of its proper divisors (40969155014).

55531133434 is a wasteful number, since it uses less digits than its factorization.

55531133434 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 54335829.

The product of its digits is 162000, while the sum is 37.

Adding to 55531133434 its reverse (43433113555), we get a palindrome (98964246989).

The spelling of 55531133434 in words is "fifty-five billion, five hundred thirty-one million, one hundred thirty-three thousand, four hundred thirty-four".