1055787907 has 4 divisors (see below), whose sum is σ = 1117893096. Its totient is φ = 993682720.

The previous prime is 1055787899. The next prime is 1055787911. The reversal of 1055787907 is 7097875501.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 1055787907 - 2³ = 1055787899 is a prime.

It is a super-2 number, since 2×1055787907² = 2229376209134881298, which contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (1055787917) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 31052569 + ... + 31052602.

It is an arithmetic number, because the mean of its divisors is an integer number (279473274).

Almost surely, 2^1055787907 is an apocalyptic number.

1055787907 is a gapful number since it is divisible by the number (17) formed by its first and last digit.

1055787907 is a deficient number, since it is larger than the sum of its proper divisors (62105189).

1055787907 is an equidigital number, since it uses as much as digits as its factorization.

1055787907 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 62105188.

The product of its (nonzero) digits is 617400, while the sum is 49.

The square root of 1055787907 is about 32492.8900992202. The cubic root of 1055787907 is about 1018.2604937410.

The spelling of 1055787907 in words is "one billion, fifty-five million, seven hundred eighty-seven thousand, nine hundred seven".