551272317 has 8 divisors (see below), whose sum is σ = 738080640. Its totient is φ = 365989440.

The previous prime is 551272297. The next prime is 551272333. The reversal of 551272317 is 713272155.

It is a happy number.

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

It is not a de Polignac number, because 551272317 - 2²² = 547078013 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (551272367) 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, 380517 + ... + 381962.

It is an arithmetic number, because the mean of its divisors is an integer number (92260080).

Almost surely, 2^551272317 is an apocalyptic number.

It is an amenable number.

551272317 is a deficient number, since it is larger than the sum of its proper divisors (186808323).

551272317 is a wasteful number, since it uses less digits than its factorization.

551272317 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 762723.

The product of its digits is 14700, while the sum is 33.

The square root of 551272317 is about 23479.1890192144. The cubic root of 551272317 is about 819.9525636846.

The spelling of 551272317 in words is "five hundred fifty-one million, two hundred seventy-two thousand, three hundred seventeen".