57051903 has 16 divisors (see below), whose sum is σ = 80183520. Its totient is φ = 36027264.

The previous prime is 57051899. The next prime is 57051913. The reversal of 57051903 is 30915075.

It is a happy number.

It is not a de Polignac number, because 57051903 - 2² = 57051899 is a prime.

It is a plaindrome in base 16.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (57051913) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 1576 + ... + 10797.

It is an arithmetic number, because the mean of its divisors is an integer number (5011470).

Almost surely, 2^57051903 is an apocalyptic number.

57051903 is a gapful number since it is divisible by the number (53) formed by its first and last digit.

57051903 is a deficient number, since it is larger than the sum of its proper divisors (23131617).

57051903 is a wasteful number, since it uses less digits than its factorization.

57051903 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 12458.

The product of its (nonzero) digits is 4725, while the sum is 30.

The square root of 57051903 is about 7553.2710132763. The cubic root of 57051903 is about 384.9668898270.

Adding to 57051903 its reverse (30915075), we get a palindrome (87966978).

The spelling of 57051903 in words is "fifty-seven million, fifty-one thousand, nine hundred three".