551426929 has 4 divisors (see below), whose sum is σ = 552214260. Its totient is φ = 550639600.

The previous prime is 551426927. The next prime is 551426957. The reversal of 551426929 is 929624155.

551426929 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 929624155 = 5 ⋅185924831.

It can be written as a sum of positive squares in 2 ways, for example, as 197121600 + 354305329 = 14040^2 + 18823^2 .

It is a cyclic number.

It is not a de Polignac number, because 551426929 - 2¹ = 551426927 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (551426927) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 392614 + ... + 394015.

It is an arithmetic number, because the mean of its divisors is an integer number (138053565).

Almost surely, 2^551426929 is an apocalyptic number.

It is an amenable number.

551426929 is a deficient number, since it is larger than the sum of its proper divisors (787331).

551426929 is an equidigital number, since it uses as much as digits as its factorization.

551426929 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 787330.

The product of its digits is 194400, while the sum is 43.

The square root of 551426929 is about 23482.4813211892. The cubic root of 551426929 is about 820.0292122252.

The spelling of 551426929 in words is "five hundred fifty-one million, four hundred twenty-six thousand, nine hundred twenty-nine".