56475340 has 48 divisors (see below), whose sum is σ = 122788512. Its totient is φ = 21805056.

The previous prime is 56475337. The next prime is 56475347. The reversal of 56475340 is 4357465.

It is a happy number.

It is a junction number, because it is equal to n+sod(n) for n = 56475296 and 56475305.

It is not an unprimeable number, because it can be changed into a prime (56475347) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 83082 + ... + 83758.

It is an arithmetic number, because the mean of its divisors is an integer number (2558094).

Almost surely, 2^56475340 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 56475340, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (61394256).

56475340 is an abundant number, since it is smaller than the sum of its proper divisors (66313172).

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

56475340 is a wasteful number, since it uses less digits than its factorization.

56475340 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 826 (or 824 counting only the distinct ones).

The product of its (nonzero) digits is 50400, while the sum is 34.

The square root of 56475340 is about 7515.0076513600. The cubic root of 56475340 is about 383.6656794299.

The spelling of 56475340 in words is "fifty-six million, four hundred seventy-five thousand, three hundred forty".