1055621012 has 12 divisors (see below), whose sum is σ = 1848015456. Its totient is φ = 527616600.

The previous prime is 1055621011. The next prime is 1055621023. The reversal of 1055621012 is 2101265501.

It is a happy number.

It is a super-2 number, since 2×1055621012² = 2228671441951808288, which contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1055621011) 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, 35864 + ... + 58287.

It is an arithmetic number, because the mean of its divisors is an integer number (154001288).

Almost surely, 2^1055621012 is an apocalyptic number.

It is an amenable number.

1055621012 is a deficient number, since it is larger than the sum of its proper divisors (792394444).

1055621012 is a wasteful number, since it uses less digits than its factorization.

1055621012 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 96958 (or 96956 counting only the distinct ones).

The product of its (nonzero) digits is 600, while the sum is 23.

The square root of 1055621012 is about 32490.3218205053. The cubic root of 1055621012 is about 1018.2068366446.

Adding to 1055621012 its reverse (2101265501), we get a palindrome (3156886513).

The spelling of 1055621012 in words is "one billion, fifty-five million, six hundred twenty-one thousand, twelve".