1061050561 has 4 divisors (see below), whose sum is σ = 1063821312. Its totient is φ = 1058279812.

The previous prime is 1061050537. The next prime is 1061050607. The reversal of 1061050561 is 1650501601.

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.

It is a cyclic number.

It is not a de Polignac number, because 1061050561 - 2⁷ = 1061050433 is a prime.

It is a super-2 number, since 2×1061050561² = 2251656585996829442, which contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (1061050511) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1384801 + ... + 1385566.

It is an arithmetic number, because the mean of its divisors is an integer number (265955328).

Almost surely, 2^1061050561 is an apocalyptic number.

It is an amenable number.

1061050561 is a deficient number, since it is larger than the sum of its proper divisors (2770751).

1061050561 is an equidigital number, since it uses as much as digits as its factorization.

1061050561 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2770750.

The product of its (nonzero) digits is 900, while the sum is 25.

The square root of 1061050561 is about 32573.7710589364. The cubic root of 1061050561 is about 1019.9495556881.

The spelling of 1061050561 in words is "one billion, sixty-one million, fifty thousand, five hundred sixty-one".