551272466 has 4 divisors (see below), whose sum is σ = 826908702. Its totient is φ = 275636232.

The previous prime is 551272457. The next prime is 551272493. The reversal of 551272466 is 664272155.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 664272155 = 5 ⋅132854431.

It can be written as a sum of positive squares in only one way, i.e., 551263441 + 9025 = 23479^2 + 95^2 .

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 137818115 + ... + 137818118.

Almost surely, 2^551272466 is an apocalyptic number.

551272466 is a deficient number, since it is larger than the sum of its proper divisors (275636236).

551272466 is a wasteful number, since it uses less digits than its factorization.

551272466 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 275636235.

The product of its digits is 100800, while the sum is 38.

The square root of 551272466 is about 23479.1921922369. The cubic root of 551272466 is about 819.9526375579.

The spelling of 551272466 in words is "five hundred fifty-one million, two hundred seventy-two thousand, four hundred sixty-six".