551641164 has 12 divisors (see below), whose sum is σ = 1287162744. Its totient is φ = 183880384.

The previous prime is 551641163. The next prime is 551641201. The reversal of 551641164 is 461146155.

It is a tau number, because it is divible by the number of its divisors (12).

It is not an unprimeable number, because it can be changed into a prime (551641163) 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, 22985037 + ... + 22985060.

It is an arithmetic number, because the mean of its divisors is an integer number (107263562).

Almost surely, 2^551641164 is an apocalyptic number.

It is an amenable number.

551641164 is an abundant number, since it is smaller than the sum of its proper divisors (735521580).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

551641164 is a wasteful number, since it uses less digits than its factorization.

551641164 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 45970104 (or 45970102 counting only the distinct ones).

The product of its digits is 14400, while the sum is 33.

The square root of 551641164 is about 23487.0424702643. The cubic root of 551641164 is about 820.1353950532.

The spelling of 551641164 in words is "five hundred fifty-one million, six hundred forty-one thousand, one hundred sixty-four".