1056212655 has 16 divisors (see below), whose sum is σ = 1729242240. Its totient is φ = 550212768.

The previous prime is 1056212639. The next prime is 1056212657. The reversal of 1056212655 is 5562126501.

It is not a de Polignac number, because 1056212655 - 2⁴ = 1056212639 is a prime.

It is a super-2 number, since 2×1056212655² = 2231170345164298050, which contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1056212657) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 818125 + ... + 819414.

It is an arithmetic number, because the mean of its divisors is an integer number (108077640).

Almost surely, 2^1056212655 is an apocalyptic number.

1056212655 is a gapful number since it is divisible by the number (15) formed by its first and last digit.

1056212655 is a deficient number, since it is larger than the sum of its proper divisors (673029585).

1056212655 is a wasteful number, since it uses less digits than its factorization.

1056212655 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1637590.

The product of its (nonzero) digits is 18000, while the sum is 33.

The square root of 1056212655 is about 32499.4254564600. The cubic root of 1056212655 is about 1018.3970256205.

The spelling of 1056212655 in words is "one billion, fifty-six million, two hundred twelve thousand, six hundred fifty-five".