57122803 has 4 divisors (see below), whose sum is σ = 57141288. Its totient is φ = 57104320.

The previous prime is 57122773. The next prime is 57122809. The reversal of 57122803 is 30822175.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-57122803 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (57122809) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 3358 + ... + 11203.

It is an arithmetic number, because the mean of its divisors is an integer number (14285322).

Almost surely, 2^57122803 is an apocalyptic number.

57122803 is a deficient number, since it is larger than the sum of its proper divisors (18485).

57122803 is a wasteful number, since it uses less digits than its factorization.

57122803 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 18484.

The product of its (nonzero) digits is 3360, while the sum is 28.

The square root of 57122803 is about 7557.9628869160. The cubic root of 57122803 is about 385.1262935305.

Adding to 57122803 its reverse (30822175), we get a palindrome (87944978).

It can be divided in two parts, 5712 and 2803, that added together give a triangular number (8515 = T₁₃₀).

The spelling of 57122803 in words is "fifty-seven million, one hundred twenty-two thousand, eight hundred three".