56745472 has 80 divisors (see below), whose sum is σ = 131991552. Its totient is φ = 23869440.

The previous prime is 56745461. The next prime is 56745511. The reversal of 56745472 is 27454765.

It is a Smith number, since the sum of its digits (40) coincides with the sum of the digits of its prime factors.

It is an alternating number because its digits alternate between odd and even.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 254353 + ... + 254575.

Almost surely, 2^56745472 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 56745472, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (65995776).

56745472 is an abundant number, since it is smaller than the sum of its proper divisors (75246080).

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

56745472 is an equidigital number, since it uses as much as digits as its factorization.

56745472 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 319 (or 303 counting only the distinct ones).

The product of its digits is 235200, while the sum is 40.

The square root of 56745472 is about 7532.9590467492. The cubic root of 56745472 is about 384.2764213415.

The spelling of 56745472 in words is "fifty-six million, seven hundred forty-five thousand, four hundred seventy-two".