1056211061 has 4 divisors (see below), whose sum is σ = 1056825792. Its totient is φ = 1055596332.

The previous prime is 1056211033. The next prime is 1056211073. The reversal of 1056211061 is 1601126501.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4, and also an emirpimes, since its reverse is a distinct semiprime: 1601126501 = 13 ⋅123163577.

It is a cyclic number.

It is not a de Polignac number, because 1056211061 - 2⁶ = 1056210997 is a prime.

It is a super-2 number, since 2×1056211061² = 2231163610757491442, 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 (1056211031) 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, 304781 + ... + 308226.

It is an arithmetic number, because the mean of its divisors is an integer number (264206448).

Almost surely, 2^1056211061 is an apocalyptic number.

It is an amenable number.

1056211061 is a deficient number, since it is larger than the sum of its proper divisors (614731).

1056211061 is an equidigital number, since it uses as much as digits as its factorization.

1056211061 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 614730.

The product of its (nonzero) digits is 360, while the sum is 23.

The square root of 1056211061 is about 32499.4009329403. The cubic root of 1056211061 is about 1018.3965133103.

Adding to 1056211061 its reverse (1601126501), we get a palindrome (2657337562).

The spelling of 1056211061 in words is "one billion, fifty-six million, two hundred eleven thousand, sixty-one".