1051555567 has 2 divisors, whose sum is σ = 1051555568. Its totient is φ = 1051555566.

The previous prime is 1051555537. The next prime is 1051555579. The reversal of 1051555567 is 7655551501.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 1051555567 - 2¹⁵ = 1051522799 is a prime.

It is a super-2 number, since 2×1051555567² = 2211538220977382978, which contains 22 as substring.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (1051555517) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 525777783 + 525777784.

It is an arithmetic number, because the mean of its divisors is an integer number (525777784).

Almost surely, 2^1051555567 is an apocalyptic number.

1051555567 is a deficient number, since it is larger than the sum of its proper divisors (1).

1051555567 is an equidigital number, since it uses as much as digits as its factorization.

1051555567 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 131250, while the sum is 40.

The square root of 1051555567 is about 32427.6975285018. The cubic root of 1051555567 is about 1016.8980369708.

The spelling of 1051555567 in words is "one billion, fifty-one million, five hundred fifty-five thousand, five hundred sixty-seven".