1056545049 has 32 divisors (see below), whose sum is σ = 1632526336. Its totient is φ = 595330560.

The previous prime is 1056545041. The next prime is 1056545051. The reversal of 1056545049 is 9405456501.

It is not a de Polignac number, because 1056545049 - 2³ = 1056545041 is a prime.

It is a super-3 number, since 3×1056545049³ (a number of 28 digits) contains 333 as substring. Note that it is a super-d number also for d = 2.

It is a junction number, because it is equal to n+sod(n) for n = 1056544998 and 1056545016.

It is not an unprimeable number, because it can be changed into a prime (1056545041) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 673464 + ... + 675030.

It is an arithmetic number, because the mean of its divisors is an integer number (51016448).

Almost surely, 2^1056545049 is an apocalyptic number.

It is an amenable number.

1056545049 is a deficient number, since it is larger than the sum of its proper divisors (575981287).

1056545049 is a wasteful number, since it uses less digits than its factorization.

1056545049 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2005.

The product of its (nonzero) digits is 108000, while the sum is 39.

The square root of 1056545049 is about 32504.5388984369. The cubic root of 1056545049 is about 1018.5038455099.

The spelling of 1056545049 in words is "one billion, fifty-six million, five hundred forty-five thousand, forty-nine".