1055591507 has 2 divisors, whose sum is σ = 1055591508. Its totient is φ = 1055591506.

The previous prime is 1055591497. The next prime is 1055591549. The reversal of 1055591507 is 7051955501.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 1055591507 - 2⁴ = 1055591491 is a prime.

It is a super-2 number, since 2×1055591507² = 2228546859301062098, which contains 22 as substring.

It is not a weakly prime, because it can be changed into another prime (1055591587) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 527795753 + 527795754.

It is an arithmetic number, because the mean of its divisors is an integer number (527795754).

Almost surely, 2^1055591507 is an apocalyptic number.

1055591507 is a deficient number, since it is larger than the sum of its proper divisors (1).

1055591507 is an equidigital number, since it uses as much as digits as its factorization.

1055591507 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 39375, while the sum is 38.

The square root of 1055591507 is about 32489.8677590414. The cubic root of 1055591507 is about 1018.1973501363.

The spelling of 1055591507 in words is "one billion, fifty-five million, five hundred ninety-one thousand, five hundred seven".