56473320 has 256 divisors, whose sum is σ = 199065600. Its totient is φ = 12718080.

The previous prime is 56473297. The next prime is 56473321. The reversal of 56473320 is 2337465.

It is a Harshad number since it is a multiple of its sum of digits (30).

It is not an unprimeable number, because it can be changed into a prime (56473321) by changing a digit.

It is a polite number, since it can be written in 63 ways as a sum of consecutive naturals, for example, 1201537 + ... + 1201583.

It is an arithmetic number, because the mean of its divisors is an integer number (777600).

Almost surely, 2^56473320 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 56473320, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (99532800).

56473320 is an abundant number, since it is smaller than the sum of its proper divisors (142592280).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

56473320 is a wasteful number, since it uses less digits than its factorization.

56473320 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 128 (or 124 counting only the distinct ones).

The product of its (nonzero) digits is 15120, while the sum is 30.

The square root of 56473320 is about 7514.8732524242. The cubic root of 56473320 is about 383.6611050799.

The spelling of 56473320 in words is "fifty-six million, four hundred seventy-three thousand, three hundred twenty".