57103403 has 4 divisors (see below), whose sum is σ = 65261040. Its totient is φ = 48945768.

The previous prime is 57103399. The next prime is 57103421. The reversal of 57103403 is 30430175.

It is a happy number.

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

It is a cyclic number.

It is not a de Polignac number, because 57103403 - 2² = 57103399 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (57103433) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 4078808 + ... + 4078821.

It is an arithmetic number, because the mean of its divisors is an integer number (16315260).

Almost surely, 2^57103403 is an apocalyptic number.

57103403 is a deficient number, since it is larger than the sum of its proper divisors (8157637).

57103403 is an equidigital number, since it uses as much as digits as its factorization.

57103403 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 8157636.

The product of its (nonzero) digits is 1260, while the sum is 23.

The square root of 57103403 is about 7556.6793633183. The cubic root of 57103403 is about 385.0826898341.

Adding to 57103403 its reverse (30430175), we get a palindrome (87533578).

The spelling of 57103403 in words is "fifty-seven million, one hundred three thousand, four hundred three".