1056505417 has 8 divisors (see below), whose sum is σ = 1153439712. Its totient is φ = 959719200.

The previous prime is 1056505397. The next prime is 1056505427. The reversal of 1056505417 is 7145056501.

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

It is not a de Polignac number, because 1056505417 - 2¹⁵ = 1056472649 is a prime.

It is a super-2 number, since 2×1056505417² = 2232407392300687778, which contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (1056505427) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 21823 + ... + 50884.

It is an arithmetic number, because the mean of its divisors is an integer number (144179964).

Almost surely, 2^1056505417 is an apocalyptic number.

It is an amenable number.

1056505417 is a deficient number, since it is larger than the sum of its proper divisors (96934295).

1056505417 is a wasteful number, since it uses less digits than its factorization.

1056505417 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 74039.

The product of its (nonzero) digits is 21000, while the sum is 34.

The square root of 1056505417 is about 32503.9292547840. The cubic root of 1056505417 is about 1018.4911103378.

The spelling of 1056505417 in words is "one billion, fifty-six million, five hundred five thousand, four hundred seventeen".