57270403 has 2 divisors, whose sum is σ = 57270404. Its totient is φ = 57270402.

The previous prime is 57270371. The next prime is 57270431. The reversal of 57270403 is 30407275.

It is an a-pointer prime, because the next prime (57270431) can be obtained adding 57270403 to its sum of digits (28).

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 57270403 - 2⁵ = 57270371 is a prime.

It is not a weakly prime, because it can be changed into another prime (57270463) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 28635201 + 28635202.

It is an arithmetic number, because the mean of its divisors is an integer number (28635202).

Almost surely, 2^57270403 is an apocalyptic number.

57270403 is a deficient number, since it is larger than the sum of its proper divisors (1).

57270403 is an equidigital number, since it uses as much as digits as its factorization.

57270403 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 5880, while the sum is 28.

The square root of 57270403 is about 7567.7211232973. The cubic root of 57270403 is about 385.4577183888.

Adding to 57270403 its reverse (30407275), we get a palindrome (87677678).

The spelling of 57270403 in words is "fifty-seven million, two hundred seventy thousand, four hundred three".