551005061 has 4 divisors (see below), whose sum is σ = 551053824. Its totient is φ = 550956300.

The previous prime is 551005031. The next prime is 551005069. The reversal of 551005061 is 160500155.

551005061 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, and also a brilliant number, because the two primes have the same length, and also an emirpimes, since its reverse is a distinct semiprime: 160500155 = 5 ⋅32100031.

It is a cyclic number.

It is not a de Polignac number, because 551005061 - 2¹⁴ = 550988677 is a prime.

It is a super-2 number, since 2×551005061² = 607213154495227442, which contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (551005069) 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, 2306 + ... + 33276.

It is an arithmetic number, because the mean of its divisors is an integer number (137763456).

Almost surely, 2^551005061 is an apocalyptic number.

It is an amenable number.

551005061 is a deficient number, since it is larger than the sum of its proper divisors (48763).

551005061 is a wasteful number, since it uses less digits than its factorization.

551005061 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 48762.

The product of its (nonzero) digits is 750, while the sum is 23.

The square root of 551005061 is about 23473.4969912879. The cubic root of 551005061 is about 819.8200383382.

The spelling of 551005061 in words is "five hundred fifty-one million, five thousand, sixty-one".