57123089 has 4 divisors (see below), whose sum is σ = 57159024. Its totient is φ = 57087156.

The previous prime is 57123067. The next prime is 57123091. The reversal of 57123089 is 98032175.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-57123089 is a prime.

It is a Duffinian number.

It is a Curzon number.

It is not an unprimeable number, because it can be changed into a prime (57123019) 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, 15467 + ... + 18800.

It is an arithmetic number, because the mean of its divisors is an integer number (14289756).

Almost surely, 2^57123089 is an apocalyptic number.

It is an amenable number.

57123089 is a deficient number, since it is larger than the sum of its proper divisors (35935).

57123089 is a wasteful number, since it uses less digits than its factorization.

57123089 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 35934.

The product of its (nonzero) digits is 15120, while the sum is 35.

The square root of 57123089 is about 7557.9818073345. The cubic root of 57123089 is about 385.1269362740.

The spelling of 57123089 in words is "fifty-seven million, one hundred twenty-three thousand, eighty-nine".