55031155534 has 4 divisors (see below), whose sum is σ = 82546733304. Its totient is φ = 27515577766.

The previous prime is 55031155523. The next prime is 55031155541. The reversal of 55031155534 is 43555113055.

It is a semiprime because it is the product of two primes.

It is a junction number, because it is equal to n+sod(n) for n = 55031155493 and 55031155502.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 13757788882 + ... + 13757788885.

It is an arithmetic number, because the mean of its divisors is an integer number (20636683326).

Almost surely, 2^55031155534 is an apocalyptic number.

55031155534 is a deficient number, since it is larger than the sum of its proper divisors (27515577770).

55031155534 is a wasteful number, since it uses less digits than its factorization.

55031155534 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 27515577769.

The product of its (nonzero) digits is 112500, while the sum is 37.

Adding to 55031155534 its reverse (43555113055), we get a palindrome (98586268589).

The spelling of 55031155534 in words is "fifty-five billion, thirty-one million, one hundred fifty-five thousand, five hundred thirty-four".