551487241 has 4 divisors (see below), whose sum is σ = 569277184. Its totient is φ = 533697300.

The previous prime is 551487239. The next prime is 551487247. The reversal of 551487241 is 142784155.

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 an emirpimes, since its reverse is a distinct semiprime: 142784155 = 5 ⋅28556831.

It is a cyclic number.

It is not a de Polignac number, because 551487241 - 2¹ = 551487239 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 551487241.

It is not an unprimeable number, because it can be changed into a prime (551487247) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 8894925 + ... + 8894986.

It is an arithmetic number, because the mean of its divisors is an integer number (142319296).

Almost surely, 2^551487241 is an apocalyptic number.

It is an amenable number.

551487241 is a deficient number, since it is larger than the sum of its proper divisors (17789943).

551487241 is a wasteful number, since it uses less digits than its factorization.

551487241 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 17789942.

The product of its digits is 44800, while the sum is 37.

The square root of 551487241 is about 23483.7654774527. The cubic root of 551487241 is about 820.0591078749.

The spelling of 551487241 in words is "five hundred fifty-one million, four hundred eighty-seven thousand, two hundred forty-one".