1055261101 has 2 divisors, whose sum is σ = 1055261102. Its totient is φ = 1055261100.

The previous prime is 1055261099. The next prime is 1055261107. The reversal of 1055261101 is 1011625501.

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., 702197001 + 353064100 = 26499^2 + 18790^2 .

It is an emirp because it is prime and its reverse (1011625501) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 1055261101 - 2¹ = 1055261099 is a prime.

It is a super-2 number, since 2×1055261101² = 2227151982567464402, which contains 22 as substring.

Together with 1055261099, 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 (1055261107) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 527630550 + 527630551.

It is an arithmetic number, because the mean of its divisors is an integer number (527630551).

Almost surely, 2^1055261101 is an apocalyptic number.

It is an amenable number.

1055261101 is a deficient number, since it is larger than the sum of its proper divisors (1).

1055261101 is an equidigital number, since it uses as much as digits as its factorization.

1055261101 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 300, while the sum is 22.

The square root of 1055261101 is about 32484.7826066298. The cubic root of 1055261101 is about 1018.0911052433.

Adding to 1055261101 its reverse (1011625501), we get a palindrome (2066886602).

The spelling of 1055261101 in words is "one billion, fifty-five million, two hundred sixty-one thousand, one hundred one".