551056537 has 2 divisors, whose sum is σ = 551056538. Its totient is φ = 551056536.

The previous prime is 551056511. The next prime is 551056543. The reversal of 551056537 is 735650155.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 470846601 + 80209936 = 21699^2 + 8956^2 .

It is a cyclic number.

It is not a de Polignac number, because 551056537 - 2⁷ = 551056409 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 551056496 and 551056505.

It is not a weakly prime, because it can be changed into another prime (551056237) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 275528268 + 275528269.

It is an arithmetic number, because the mean of its divisors is an integer number (275528269).

Almost surely, 2^551056537 is an apocalyptic number.

It is an amenable number.

551056537 is a deficient number, since it is larger than the sum of its proper divisors (1).

551056537 is an equidigital number, since it uses as much as digits as its factorization.

551056537 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 78750, while the sum is 37.

The square root of 551056537 is about 23474.5934363090. The cubic root of 551056537 is about 819.8455672883.

The spelling of 551056537 in words is "five hundred fifty-one million, fifty-six thousand, five hundred thirty-seven".