551976827 has 2 divisors, whose sum is σ = 551976828. Its totient is φ = 551976826.

The previous prime is 551976823. The next prime is 551976833. The reversal of 551976827 is 728679155.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 551976827 - 2² = 551976823 is a prime.

It is a Chen prime.

It is not a weakly prime, because it can be changed into another prime (551976823) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 275988413 + 275988414.

It is an arithmetic number, because the mean of its divisors is an integer number (275988414).

Almost surely, 2^551976827 is an apocalyptic number.

551976827 is a deficient number, since it is larger than the sum of its proper divisors (1).

551976827 is an equidigital number, since it uses as much as digits as its factorization.

551976827 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 1058400, while the sum is 50.

The square root of 551976827 is about 23494.1870895760. The cubic root of 551976827 is about 820.3017068442.

The spelling of 551976827 in words is "five hundred fifty-one million, nine hundred seventy-six thousand, eight hundred twenty-seven".