1055603553 has 8 divisors (see below), whose sum is σ = 1418554368. Its totient is φ = 698194224.

The previous prime is 1055603551. The next prime is 1055603557. The reversal of 1055603553 is 3553065501.

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 1055603553 - 2¹ = 1055603551 is a prime.

It is a super-2 number, since 2×1055603553² = 2228597722212447618, which contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (1055603551) 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 7 ways as a sum of consecutive naturals, for example, 1384926 + ... + 1385687.

It is an arithmetic number, because the mean of its divisors is an integer number (177319296).

Almost surely, 2^1055603553 is an apocalyptic number.

It is an amenable number.

1055603553 is a deficient number, since it is larger than the sum of its proper divisors (362950815).

1055603553 is a wasteful number, since it uses less digits than its factorization.

1055603553 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2770743.

The product of its (nonzero) digits is 33750, while the sum is 33.

The square root of 1055603553 is about 32490.0531393841. The cubic root of 1055603553 is about 1018.2012232124.

The spelling of 1055603553 in words is "one billion, fifty-five million, six hundred three thousand, five hundred fifty-three".