57507223 has 2 divisors, whose sum is σ = 57507224. Its totient is φ = 57507222.

The previous prime is 57507221. The next prime is 57507227. The reversal of 57507223 is 32270575.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 57507223 - 2¹ = 57507221 is a prime.

Together with 57507221, it forms a pair of twin primes.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (57507221) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 28753611 + 28753612.

It is an arithmetic number, because the mean of its divisors is an integer number (28753612).

Almost surely, 2^57507223 is an apocalyptic number.

57507223 is a deficient number, since it is larger than the sum of its proper divisors (1).

57507223 is an equidigital number, since it uses as much as digits as its factorization.

57507223 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 14700, while the sum is 31.

The square root of 57507223 is about 7583.3516996115. The cubic root of 57507223 is about 385.9882923955.

Adding to 57507223 its reverse (32270575), we get a palindrome (89777798).

The spelling of 57507223 in words is "fifty-seven million, five hundred seven thousand, two hundred twenty-three".