1055563447 has 4 divisors (see below), whose sum is σ = 1055693880. Its totient is φ = 1055433016.

The previous prime is 1055563427. The next prime is 1055563451. The reversal of 1055563447 is 7443655501.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 7443655501 = 1297 ⋅5739133.

It is a cyclic number.

It is not a de Polignac number, because 1055563447 - 2²³ = 1047174839 is a prime.

It is a super-2 number, since 2×1055563447² = 2228428381285043618, which contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1055563427) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 52213 + ... + 69550.

It is an arithmetic number, because the mean of its divisors is an integer number (263923470).

Almost surely, 2^1055563447 is an apocalyptic number.

1055563447 is a deficient number, since it is larger than the sum of its proper divisors (130433).

1055563447 is an equidigital number, since it uses as much as digits as its factorization.

1055563447 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 130432.

The product of its (nonzero) digits is 252000, while the sum is 40.

The square root of 1055563447 is about 32489.4359292371. The cubic root of 1055563447 is about 1018.1883280633.

The spelling of 1055563447 in words is "one billion, fifty-five million, five hundred sixty-three thousand, four hundred forty-seven".