57109223 has 4 divisors (see below), whose sum is σ = 58951488. Its totient is φ = 55266960.

The previous prime is 57109211. The next prime is 57109267. The reversal of 57109223 is 32290175.

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 57109223 - 2¹⁴ = 57092839 is a prime.

It is a super-2 number, since 2×57109223² = 6522926703327458, which contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (57109523) 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 3 ways as a sum of consecutive naturals, for example, 921086 + ... + 921147.

It is an arithmetic number, because the mean of its divisors is an integer number (14737872).

Almost surely, 2^57109223 is an apocalyptic number.

57109223 is a deficient number, since it is larger than the sum of its proper divisors (1842265).

57109223 is a wasteful number, since it uses less digits than its factorization.

57109223 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1842264.

The product of its (nonzero) digits is 3780, while the sum is 29.

The square root of 57109223 is about 7557.0644432875. The cubic root of 57109223 is about 385.0957719799.

Adding to 57109223 its reverse (32290175), we get a palindrome (89399398).

The spelling of 57109223 in words is "fifty-seven million, one hundred nine thousand, two hundred twenty-three".