56542402 has 16 divisors (see below), whose sum is σ = 100272960. Its totient is φ = 23396688.

The previous prime is 56542397. The next prime is 56542417. The reversal of 56542402 is 20424565.

56542402 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 69228 + ... + 70039.

It is an arithmetic number, because the mean of its divisors is an integer number (6267060).

Almost surely, 2^56542402 is an apocalyptic number.

56542402 is a deficient number, since it is larger than the sum of its proper divisors (43730558).

56542402 is a wasteful number, since it uses less digits than its factorization.

56542402 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 139305.

The product of its (nonzero) digits is 9600, while the sum is 28.

The square root of 56542402 is about 7519.4681992811. The cubic root of 56542402 is about 383.8174814396.

Adding to 56542402 its reverse (20424565), we get a palindrome (76966967).

The spelling of 56542402 in words is "fifty-six million, five hundred forty-two thousand, four hundred two".