551516732258 has 6 divisors (see below), whose sum is σ = 827276673771. Its totient is φ = 275757841002.

The previous prime is 551516732233. The next prime is 551516732267. The reversal of 551516732258 is 852237615155.

It can be written as a sum of positive squares in only one way, i.e., 275758366129 + 275758366129 = 525127^2 + 525127^2 .

It is an ABA number since it can be written as A⋅B^A, here for A=2, B=525127.

It is a Duffinian number.

It is a Curzon number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 2 ways as a sum of consecutive naturals, for example, 787691 + ... + 1312817.

Almost surely, 2^551516732258 is an apocalyptic number.

551516732258 is a deficient number, since it is larger than the sum of its proper divisors (275759941513).

551516732258 is an frugal number, since it uses more digits than its factorization.

551516732258 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1050256 (or 525129 counting only the distinct ones).

The product of its digits is 2520000, while the sum is 50.

Multiplying 551516732258 by its sum of digits (50), we get a square (27575836612900 = 5251270²).

The spelling of 551516732258 in words is "five hundred fifty-one billion, five hundred sixteen million, seven hundred thirty-two thousand, two hundred fifty-eight".