551055105501 has 4 divisors (see below), whose sum is σ = 734740140672. Its totient is φ = 367370070332.

The previous prime is 551055105487. The next prime is 551055105551. The reversal of 551055105501 is 105501550155.

551055105501 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 551055105501 - 2⁶ = 551055105437 is a prime.

It is a super-2 number, since 2×551055105501² (a number of 24 digits) contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (551055105551) 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, 91842517581 + ... + 91842517586.

It is an arithmetic number, because the mean of its divisors is an integer number (183685035168).

Almost surely, 2^551055105501 is an apocalyptic number.

It is an amenable number.

551055105501 is a deficient number, since it is larger than the sum of its proper divisors (183685035171).

551055105501 is a wasteful number, since it uses less digits than its factorization.

551055105501 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 183685035170.

The product of its (nonzero) digits is 15625, while the sum is 33.

Adding to 551055105501 its reverse (105501550155), we get a palindrome (656556655656).

The spelling of 551055105501 in words is "five hundred fifty-one billion, fifty-five million, one hundred five thousand, five hundred one".