551269009 has 8 divisors (see below), whose sum is σ = 558257832. Its totient is φ = 544310400.

The previous prime is 551269007. The next prime is 551269049. The reversal of 551269009 is 900962155.

It can be written as a sum of positive squares in 4 ways, for example, as 62726400 + 488542609 = 7920^2 + 22103^2 .

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

It is a cyclic number.

It is not a de Polignac number, because 551269009 - 2¹ = 551269007 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (551269007) 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, 30357 + ... + 44989.

It is an arithmetic number, because the mean of its divisors is an integer number (69782229).

Almost surely, 2^551269009 is an apocalyptic number.

It is an amenable number.

551269009 is a deficient number, since it is larger than the sum of its proper divisors (6988823).

551269009 is a wasteful number, since it uses less digits than its factorization.

551269009 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 15107.

The product of its (nonzero) digits is 24300, while the sum is 37.

The square root of 551269009 is about 23479.1185737455. The cubic root of 551269009 is about 819.9509235947.

The spelling of 551269009 in words is "five hundred fifty-one million, two hundred sixty-nine thousand, nine".