1055612111 has 4 divisors (see below), whose sum is σ = 1060615224. Its totient is φ = 1050609000.

The previous prime is 1055612081. The next prime is 1055612113. The reversal of 1055612111 is 1112165501.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 1112165501 = 5059 ⋅219839.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-1055612111 is a prime.

It is a super-2 number, since 2×1055612111² = 2228633857779752642, which contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1055612113) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 2501240 + ... + 2501661.

It is an arithmetic number, because the mean of its divisors is an integer number (265153806).

Almost surely, 2^1055612111 is an apocalyptic number.

1055612111 is a deficient number, since it is larger than the sum of its proper divisors (5003113).

1055612111 is an equidigital number, since it uses as much as digits as its factorization.

1055612111 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5003112.

The product of its (nonzero) digits is 300, while the sum is 23.

The square root of 1055612111 is about 32490.1848409639. The cubic root of 1055612111 is about 1018.2039747954.

Adding to 1055612111 its reverse (1112165501), we get a palindrome (2167777612).

The spelling of 1055612111 in words is "one billion, fifty-five million, six hundred twelve thousand, one hundred eleven".