1055507918 has 4 divisors (see below), whose sum is σ = 1583261880. Its totient is φ = 527753958.

The previous prime is 1055507911. The next prime is 1055507987. The reversal of 1055507918 is 8197055501.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 8197055501 = 2851 ⋅2875151.

It is a super-2 number, since 2×1055507918² = 2228193929921389448, which contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1055507911) 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 as a sum of consecutive naturals, namely, 263876978 + ... + 263876981.

It is an arithmetic number, because the mean of its divisors is an integer number (395815470).

Almost surely, 2^1055507918 is an apocalyptic number.

1055507918 is a deficient number, since it is larger than the sum of its proper divisors (527753962).

1055507918 is an equidigital number, since it uses as much as digits as its factorization.

1055507918 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 527753961.

The product of its (nonzero) digits is 63000, while the sum is 41.

The square root of 1055507918 is about 32488.5813479136. The cubic root of 1055507918 is about 1018.1704734691.

The spelling of 1055507918 in words is "one billion, fifty-five million, five hundred seven thousand, nine hundred eighteen".