551500060501 has 4 divisors (see below), whose sum is σ = 593923142092. Its totient is φ = 509076978912.

The previous prime is 551500060499. The next prime is 551500060513. The reversal of 551500060501 is 105060005155.

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

It can be written as a sum of positive squares in 2 ways, for example, as 243113094225 + 308386966276 = 493065^2 + 555326^2 .

It is a cyclic number.

It is not a de Polignac number, because 551500060501 - 2¹ = 551500060499 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 551500060501.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (551500060541) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 21211540776 + ... + 21211540801.

It is an arithmetic number, because the mean of its divisors is an integer number (148480785523).

Almost surely, 2^551500060501 is an apocalyptic number.

It is an amenable number.

551500060501 is a deficient number, since it is larger than the sum of its proper divisors (42423081591).

551500060501 is a wasteful number, since it uses less digits than its factorization.

551500060501 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 42423081590.

The product of its (nonzero) digits is 3750, while the sum is 28.

Adding to 551500060501 its reverse (105060005155), we get a palindrome (656560065656).

The spelling of 551500060501 in words is "five hundred fifty-one billion, five hundred million, sixty thousand, five hundred one".