551228547 has 8 divisors (see below), whose sum is σ = 740259520. Its totient is φ = 364841640.

The previous prime is 551228539. The next prime is 551228569. The reversal of 551228547 is 745822155.

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 551228547 - 2³ = 551228539 is a prime.

It is a super-2 number, since 2×551228547² = 607705822055462418, which contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (551228507) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 660529 + ... + 661362.

It is an arithmetic number, because the mean of its divisors is an integer number (92532440).

Almost surely, 2^551228547 is an apocalyptic number.

551228547 is a deficient number, since it is larger than the sum of its proper divisors (189030973).

551228547 is a wasteful number, since it uses less digits than its factorization.

551228547 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1322033.

The product of its digits is 112000, while the sum is 39.

The square root of 551228547 is about 23478.2568986712. The cubic root of 551228547 is about 819.9308622058.

It can be divided in two parts, 551228 and 547, that added together give a triangular number (551775 = T₁₀₅₀).

The spelling of 551228547 in words is "five hundred fifty-one million, two hundred twenty-eight thousand, five hundred forty-seven".