1055562491 has 2 divisors, whose sum is σ = 1055562492. Its totient is φ = 1055562490.

The previous prime is 1055562457. The next prime is 1055562511. The reversal of 1055562491 is 1942655501.

It is a strong prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-1055562491 is a prime.

It is a super-2 number, since 2×1055562491² = 2228424344812250162, which contains 22 as substring.

It is not a weakly prime, because it can be changed into another prime (1055562791) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 527781245 + 527781246.

It is an arithmetic number, because the mean of its divisors is an integer number (527781246).

Almost surely, 2^1055562491 is an apocalyptic number.

1055562491 is a deficient number, since it is larger than the sum of its proper divisors (1).

1055562491 is an equidigital number, since it uses as much as digits as its factorization.

1055562491 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 54000, while the sum is 38.

The square root of 1055562491 is about 32489.4212167592. The cubic root of 1055562491 is about 1018.1880206798.

The spelling of 1055562491 in words is "one billion, fifty-five million, five hundred sixty-two thousand, four hundred ninety-one".