56490745 has 8 divisors (see below), whose sum is σ = 71776584. Its totient is φ = 42534144.

The previous prime is 56490719. The next prime is 56490751. The reversal of 56490745 is 54709465.

It can be written as a sum of positive squares in 4 ways, for example, as 13601344 + 42889401 = 3688^2 + 6549^2 .

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

It is a cyclic number.

It is not a de Polignac number, because 56490745 - 2¹¹ = 56488697 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 56490698 and 56490707.

It is an unprimeable number.

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, 332214 + ... + 332383.

It is an arithmetic number, because the mean of its divisors is an integer number (8972073).

Almost surely, 2^56490745 is an apocalyptic number.

It is an amenable number.

56490745 is a deficient number, since it is larger than the sum of its proper divisors (15285839).

56490745 is a wasteful number, since it uses less digits than its factorization.

56490745 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 664619.

The product of its (nonzero) digits is 151200, while the sum is 40.

The square root of 56490745 is about 7516.0325305310. The cubic root of 56490745 is about 383.7005609226.

The spelling of 56490745 in words is "fifty-six million, four hundred ninety thousand, seven hundred forty-five".