1055501101 has 2 divisors, whose sum is σ = 1055501102. Its totient is φ = 1055501100.

The previous prime is 1055501099. The next prime is 1055501131. The reversal of 1055501101 is 1011055501.

It is a happy number.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 746655625 + 308845476 = 27325^2 + 17574^2 .

It is a cyclic number.

It is not a de Polignac number, because 1055501101 - 2¹ = 1055501099 is a prime.

It is a super-2 number, since 2×1055501101² = 2228165148424424402, which contains 22 as substring.

Together with 1055501099, it forms a pair of twin primes.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (1055501131) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 527750550 + 527750551.

It is an arithmetic number, because the mean of its divisors is an integer number (527750551).

Almost surely, 2^1055501101 is an apocalyptic number.

It is an amenable number.

1055501101 is a deficient number, since it is larger than the sum of its proper divisors (1).

1055501101 is an equidigital number, since it uses as much as digits as its factorization.

1055501101 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 125, while the sum is 19.

The square root of 1055501101 is about 32488.4764339604. The cubic root of 1055501101 is about 1018.1682815124.

Adding to 1055501101 its reverse (1011055501), we get a palindrome (2066556602).

The spelling of 1055501101 in words is "one billion, fifty-five million, five hundred one thousand, one hundred one".