5551216534 has 4 divisors (see below), whose sum is σ = 8326824804. Its totient is φ = 2775608266.

The previous prime is 5551216487. The next prime is 5551216547. The reversal of 5551216534 is 4356121555.

It is a happy number.

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 = 5551216493 and 5551216502.

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, 1387804132 + ... + 1387804135.

It is an arithmetic number, because the mean of its divisors is an integer number (2081706201).

Almost surely, 2^5551216534 is an apocalyptic number.

5551216534 is a deficient number, since it is larger than the sum of its proper divisors (2775608270).

5551216534 is a wasteful number, since it uses less digits than its factorization.

5551216534 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2775608269.

The product of its digits is 90000, while the sum is 37.

The square root of 5551216534 is about 74506.4865229867. The cubic root of 5551216534 is about 1770.6364053677.

The spelling of 5551216534 in words is "five billion, five hundred fifty-one million, two hundred sixteen thousand, five hundred thirty-four".