56672045 has 8 divisors (see below), whose sum is σ = 69665400. Its totient is φ = 44231680.

The previous prime is 56671997. The next prime is 56672047. The reversal of 56672045 is 54027665.

It can be written as a sum of positive squares in 4 ways, for example, as 407044 + 56265001 = 638^2 + 7501^2 .

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

It is not a de Polignac number, because 56672045 - 2⁶ = 56671981 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 56671996 and 56672014.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (56672047) 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, 138020 + ... + 138429.

It is an arithmetic number, because the mean of its divisors is an integer number (8708175).

Almost surely, 2^56672045 is an apocalyptic number.

It is an amenable number.

56672045 is a deficient number, since it is larger than the sum of its proper divisors (12993355).

56672045 is a wasteful number, since it uses less digits than its factorization.

56672045 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 276495.

The product of its (nonzero) digits is 50400, while the sum is 35.

The square root of 56672045 is about 7528.0837535192. The cubic root of 56672045 is about 384.1106022732.

The spelling of 56672045 in words is "fifty-six million, six hundred seventy-two thousand, forty-five".