1051305505 has 12 divisors (see below), whose sum is σ = 1318805460. Its totient is φ = 804475232.

The previous prime is 1051305481. The next prime is 1051305527. The reversal of 1051305505 is 5055031501.

1051305505 is digitally balanced in base 2 and base 6, because in such bases it contains all the possibile digits an equal number of times.

It can be written as a sum of positive squares in 2 ways, for example, as 471410944 + 579894561 = 21712^2 + 24081^2 .

It is a de Polignac number, because none of the positive numbers 2^k-1051305505 is a prime.

It is a super-2 number, since 2×1051305505² = 2210486529686610050, which contains 22 as substring.

It is a self number, because there is not a number n which added to its sum of digits gives 1051305505.

It is an unprimeable number.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 196090 + ... + 201379.

It is an arithmetic number, because the mean of its divisors is an integer number (109900455).

Almost surely, 2^1051305505 is an apocalyptic number.

It is an amenable number.

1051305505 is a deficient number, since it is larger than the sum of its proper divisors (267499955).

1051305505 is an equidigital number, since it uses as much as digits as its factorization.

1051305505 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 397520 (or 397497 counting only the distinct ones).

The product of its (nonzero) digits is 1875, while the sum is 25.

The square root of 1051305505 is about 32423.8416138495. The cubic root of 1051305505 is about 1016.8174237903.

The spelling of 1051305505 in words is "one billion, fifty-one million, three hundred five thousand, five hundred five".