1051205506 has 16 divisors (see below), whose sum is σ = 1797990264. Its totient is φ = 456632064.

The previous prime is 1051205503. The next prime is 1051205509. The reversal of 1051205506 is 6055021501.

1051205506 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is an interprime number because it is at equal distance from previous prime (1051205503) and next prime (1051205509).

It can be written as a sum of positive squares in 4 ways, for example, as 1047104881 + 4100625 = 32359^2 + 2025^2 .

It is a super-2 number, since 2×1051205506² = 2210066031689432072, which contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (1051205503) 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, 1188705 + ... + 1189588.

Almost surely, 2^1051205506 is an apocalyptic number.

1051205506 is a deficient number, since it is larger than the sum of its proper divisors (746784758).

1051205506 is a wasteful number, since it uses less digits than its factorization.

1051205506 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2378325.

The product of its (nonzero) digits is 1500, while the sum is 25.

The square root of 1051205506 is about 32422.2995174617. The cubic root of 1051205506 is about 1016.7851832572.

The spelling of 1051205506 in words is "one billion, fifty-one million, two hundred five thousand, five hundred six".