56378530 has 16 divisors (see below), whose sum is σ = 109287864. Its totient is φ = 20816640.

The previous prime is 56378513. The next prime is 56378533. The reversal of 56378530 is 3587365.

It can be written as a sum of positive squares in 4 ways, for example, as 22401289 + 33977241 = 4733^2 + 5829^2 .

It is a self number, because there is not a number n which added to its sum of digits gives 56378530.

It is not an unprimeable number, because it can be changed into a prime (56378533) by changing a digit.

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, 216711 + ... + 216970.

Almost surely, 2^56378530 is an apocalyptic number.

56378530 is a deficient number, since it is larger than the sum of its proper divisors (52909334).

56378530 is a wasteful number, since it uses less digits than its factorization.

56378530 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 433701.

The product of its (nonzero) digits is 75600, while the sum is 37.

The square root of 56378530 is about 7508.5637774477. The cubic root of 56378530 is about 383.4463275383.

The spelling of 56378530 in words is "fifty-six million, three hundred seventy-eight thousand, five hundred thirty".