51223354553 has 8 divisors (see below), whose sum is σ = 58542508800. Its totient is φ = 43904583360.

The previous prime is 51223354549. The next prime is 51223354571. The reversal of 51223354553 is 35545332215.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 51223354553 - 2² = 51223354549 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (51223354573) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 299648 + ... + 438446.

It is an arithmetic number, because the mean of its divisors is an integer number (7317813600).

Almost surely, 2^51223354553 is an apocalyptic number.

It is an amenable number.

51223354553 is a deficient number, since it is larger than the sum of its proper divisors (7319154247).

51223354553 is a wasteful number, since it uses less digits than its factorization.

51223354553 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 191527.

The product of its digits is 270000, while the sum is 38.

Adding to 51223354553 its reverse (35545332215), we get a palindrome (86768686768).

The spelling of 51223354553 in words is "fifty-one billion, two hundred twenty-three million, three hundred fifty-four thousand, five hundred fifty-three".