1050520661 has 8 divisors (see below), whose sum is σ = 1114274304. Its totient is φ = 986984640.

The previous prime is 1050520651. The next prime is 1050520663. The reversal of 1050520661 is 1660250501.

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 1050520661 - 2¹⁰ = 1050519637 is a prime.

It is a super-2 number, since 2×1050520661² = 2207187318375753842, which contains 22 as substring.

It is a Duffinian number.

It is a Curzon number.

It is a self number, because there is not a number n which added to its sum of digits gives 1050520661.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1050520663) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 44405 + ... + 63818.

It is an arithmetic number, because the mean of its divisors is an integer number (139284288).

Almost surely, 2^1050520661 is an apocalyptic number.

It is an amenable number.

1050520661 is a deficient number, since it is larger than the sum of its proper divisors (63753643).

1050520661 is a wasteful number, since it uses less digits than its factorization.

1050520661 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 108811.

The product of its (nonzero) digits is 1800, while the sum is 26.

The square root of 1050520661 is about 32411.7364699888. The cubic root of 1050520661 is about 1016.5643284012.

The spelling of 1050520661 in words is "one billion, fifty million, five hundred twenty thousand, six hundred sixty-one".