1055551916 has 12 divisors (see below), whose sum is σ = 1944437880. Its totient is φ = 499998240.

The previous prime is 1055551843. The next prime is 1055551957. The reversal of 1055551916 is 6191555501.

It is a super-2 number, since 2×1055551916² = 2228379694742542112, which contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (38).

It is a self number, because there is not a number n which added to its sum of digits gives 1055551916.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 6944345 + ... + 6944496.

It is an arithmetic number, because the mean of its divisors is an integer number (162036490).

Almost surely, 2^1055551916 is an apocalyptic number.

It is an amenable number.

1055551916 is a deficient number, since it is larger than the sum of its proper divisors (888885964).

1055551916 is a wasteful number, since it uses less digits than its factorization.

1055551916 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 13888864 (or 13888862 counting only the distinct ones).

The product of its (nonzero) digits is 33750, while the sum is 38.

The square root of 1055551916 is about 32489.2584710701. The cubic root of 1055551916 is about 1018.1846204787.

The spelling of 1055551916 in words is "one billion, fifty-five million, five hundred fifty-one thousand, nine hundred sixteen".