56473645 has 8 divisors (see below), whose sum is σ = 68439960. Its totient is φ = 44731200.

The previous prime is 56473633. The next prime is 56473657. The reversal of 56473645 is 54637465.

It is an interprime number because it is at equal distance from previous prime (56473633) and next prime (56473657).

It can be written as a sum of positive squares in 4 ways, for example, as 28869129 + 27604516 = 5373^2 + 5254^2 .

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

It is not a de Polignac number, because 56473645 - 2¹⁵ = 56440877 is a prime.

It is a super-3 number, since 3×56473645³ (a number of 24 digits) contains 333 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 56473598 and 56473607.

It is a congruent number.

It is an unprimeable number.

It is an upside-down number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 55410 + ... + 56419.

It is an arithmetic number, because the mean of its divisors is an integer number (8554995).

Almost surely, 2^56473645 is an apocalyptic number.

It is an amenable number.

56473645 is a deficient number, since it is larger than the sum of its proper divisors (11966315).

56473645 is a wasteful number, since it uses less digits than its factorization.

56473645 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 111935.

The product of its digits is 302400, while the sum is 40.

The square root of 56473645 is about 7514.8948761776. The cubic root of 56473645 is about 383.6618410594.

The spelling of 56473645 in words is "fifty-six million, four hundred seventy-three thousand, six hundred forty-five".