57278203 has 4 divisors (see below), whose sum is σ = 58249080. Its totient is φ = 56307328.

The previous prime is 57278201. The next prime is 57278227. The reversal of 57278203 is 30287275.

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 57278203 - 2¹ = 57278201 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (57278201) 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, 485350 + ... + 485467.

It is an arithmetic number, because the mean of its divisors is an integer number (14562270).

Almost surely, 2^57278203 is an apocalyptic number.

57278203 is a deficient number, since it is larger than the sum of its proper divisors (970877).

57278203 is an equidigital number, since it uses as much as digits as its factorization.

57278203 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 970876.

The product of its (nonzero) digits is 23520, while the sum is 34.

The square root of 57278203 is about 7568.2364524373. The cubic root of 57278203 is about 385.4752168613.

The spelling of 57278203 in words is "fifty-seven million, two hundred seventy-eight thousand, two hundred three".