1055619959 has 2 divisors, whose sum is σ = 1055619960. Its totient is φ = 1055619958.

The previous prime is 1055619899. The next prime is 1055619997. The reversal of 1055619959 is 9599165501.

It is a happy number.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 1055619959 - 2⁸ = 1055619703 is a prime.

It is a super-2 number, since 2×1055619959² = 2228666995678323362, which contains 22 as substring.

It is a Sophie Germain prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (1055619259) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 527809979 + 527809980.

It is an arithmetic number, because the mean of its divisors is an integer number (527809980).

Almost surely, 2^1055619959 is an apocalyptic number.

1055619959 is a deficient number, since it is larger than the sum of its proper divisors (1).

1055619959 is an equidigital number, since it uses as much as digits as its factorization.

1055619959 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 546750, while the sum is 50.

The square root of 1055619959 is about 32490.3056156756. The cubic root of 1055619959 is about 1018.2064980850.

The spelling of 1055619959 in words is "one billion, fifty-five million, six hundred nineteen thousand, nine hundred fifty-nine".