57809269 has 12 divisors (see below), whose sum is σ = 67919148. Its totient is φ = 49056000.

The previous prime is 57809263. The next prime is 57809309. The reversal of 57809269 is 96290875.

It can be written as a sum of positive squares in 2 ways, for example, as 45064369 + 12744900 = 6713^2 + 3570^2 .

It is not a de Polignac number, because 57809269 - 2³ = 57809261 is a prime.

It is a super-2 number, since 2×57809269² = 6683823164628722, 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 (57809261) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 892 + ... + 10789.

It is an arithmetic number, because the mean of its divisors is an integer number (5659929).

Almost surely, 2^57809269 is an apocalyptic number.

It is an amenable number.

57809269 is a deficient number, since it is larger than the sum of its proper divisors (10109879).

57809269 is a wasteful number, since it uses less digits than its factorization.

57809269 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 11796 (or 11789 counting only the distinct ones).

The product of its (nonzero) digits is 272160, while the sum is 46.

The square root of 57809269 is about 7603.2406906529. The cubic root of 57809269 is about 386.6628899585.

The spelling of 57809269 in words is "fifty-seven million, eight hundred nine thousand, two hundred sixty-nine".