551065651 has 2 divisors, whose sum is σ = 551065652. Its totient is φ = 551065650.

The previous prime is 551065637. The next prime is 551065663. The reversal of 551065651 is 156560155.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 551065651 - 2¹³ = 551057459 is a prime.

It is not a weakly prime, because it can be changed into another prime (551065601) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 275532825 + 275532826.

It is an arithmetic number, because the mean of its divisors is an integer number (275532826).

Almost surely, 2^551065651 is an apocalyptic number.

551065651 is a deficient number, since it is larger than the sum of its proper divisors (1).

551065651 is an equidigital number, since it uses as much as digits as its factorization.

551065651 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 22500, while the sum is 34.

The square root of 551065651 is about 23474.7875602741. The cubic root of 551065651 is about 819.8500871097.

The spelling of 551065651 in words is "five hundred fifty-one million, sixty-five thousand, six hundred fifty-one".