1056816473 has 4 divisors (see below), whose sum is σ = 1057636368. Its totient is φ = 1055996580.

The previous prime is 1056816427. The next prime is 1056816487. The reversal of 1056816473 is 3746186501.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4, and also an emirpimes, since its reverse is a distinct semiprime: 3746186501 = 5501 ⋅681001.

It is a cyclic number.

It is not a de Polignac number, because 1056816473 - 2¹⁰ = 1056815449 is a prime.

It is a super-2 number, since 2×1056816473² = 2233722115208319458, which contains 22 as substring.

It is a Duffinian number.

It is a Curzon number.

It is a self number, because there is not a number n which added to its sum of digits gives 1056816473.

It is not an unprimeable number, because it can be changed into a prime (1056816773) 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, 408011 + ... + 410592.

It is an arithmetic number, because the mean of its divisors is an integer number (264409092).

Almost surely, 2^1056816473 is an apocalyptic number.

It is an amenable number.

1056816473 is a deficient number, since it is larger than the sum of its proper divisors (819895).

1056816473 is an equidigital number, since it uses as much as digits as its factorization.

1056816473 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 819894.

The product of its (nonzero) digits is 120960, while the sum is 41.

The square root of 1056816473 is about 32508.7138010719. The cubic root of 1056816473 is about 1018.5910551431.

The spelling of 1056816473 in words is "one billion, fifty-six million, eight hundred sixteen thousand, four hundred seventy-three".