1055655589 has 2 divisors, whose sum is σ = 1055655590. Its totient is φ = 1055655588.

The previous prime is 1055655581. The next prime is 1055655631. The reversal of 1055655589 is 9855565501.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 962860900 + 92794689 = 31030^2 + 9633^2 .

It is a cyclic number.

It is not a de Polignac number, because 1055655589 - 2³ = 1055655581 is a prime.

It is a super-2 number, since 2×1055655589² = 2228817445173873842, which contains 22 as substring.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (1055655581) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 527827794 + 527827795.

It is an arithmetic number, because the mean of its divisors is an integer number (527827795).

Almost surely, 2^1055655589 is an apocalyptic number.

It is an amenable number.

1055655589 is a deficient number, since it is larger than the sum of its proper divisors (1).

1055655589 is an equidigital number, since it uses as much as digits as its factorization.

1055655589 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 1350000, while the sum is 49.

The square root of 1055655589 is about 32490.8539284519. The cubic root of 1055655589 is about 1018.2179536879.

The spelling of 1055655589 in words is "one billion, fifty-five million, six hundred fifty-five thousand, five hundred eighty-nine".