1055553998 has 16 divisors (see below), whose sum is σ = 1596792960. Its totient is φ = 523309056.

The previous prime is 1055553971. The next prime is 1055554007. The reversal of 1055553998 is 8993555501.

It is a super-2 number, since 2×1055553998² = 2228388485387568008, which contains 22 as substring.

It is a Curzon number.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 110018 + ... + 119226.

It is an arithmetic number, because the mean of its divisors is an integer number (99799560).

Almost surely, 2^1055553998 is an apocalyptic number.

1055553998 is a deficient number, since it is larger than the sum of its proper divisors (541238962).

1055553998 is a wasteful number, since it uses less digits than its factorization.

1055553998 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 9691.

The product of its (nonzero) digits is 1215000, while the sum is 50.

The square root of 1055553998 is about 32489.2905124135. The cubic root of 1055553998 is about 1018.1852899102.

The spelling of 1055553998 in words is "one billion, fifty-five million, five hundred fifty-three thousand, nine hundred ninety-eight".