56845402 has 4 divisors (see below), whose sum is σ = 85268106. Its totient is φ = 28422700.

The previous prime is 56845381. The next prime is 56845409. The reversal of 56845402 is 20454865.

56845402 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 20454865 = 5 ⋅4090973.

It can be written as a sum of positive squares in only one way, i.e., 44235801 + 12609601 = 6651^2 + 3551^2 .

It is not an unprimeable number, because it can be changed into a prime (56845409) by changing a digit.

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 as a sum of consecutive naturals, namely, 14211349 + ... + 14211352.

Almost surely, 2^56845402 is an apocalyptic number.

56845402 is a deficient number, since it is larger than the sum of its proper divisors (28422704).

56845402 is a wasteful number, since it uses less digits than its factorization.

56845402 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 28422703.

The product of its (nonzero) digits is 38400, while the sum is 34.

The square root of 56845402 is about 7539.5889808397. The cubic root of 56845402 is about 384.5018620797.

The spelling of 56845402 in words is "fifty-six million, eight hundred forty-five thousand, four hundred two".