57531293 has 4 divisors (see below), whose sum is σ = 57553980. Its totient is φ = 57508608.

The previous prime is 57531277. The next prime is 57531307. The reversal of 57531293 is 39213575.

It is a happy number.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 39400729 + 18130564 = 6277^2 + 4258^2 .

It is a cyclic number.

It is not a de Polignac number, because 57531293 - 2⁴ = 57531277 is a prime.

It is a Duffinian number.

It is a Curzon number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (57531223) 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, 6980 + ... + 12797.

It is an arithmetic number, because the mean of its divisors is an integer number (14388495).

Almost surely, 2^57531293 is an apocalyptic number.

It is an amenable number.

57531293 is a deficient number, since it is larger than the sum of its proper divisors (22687).

57531293 is a wasteful number, since it uses less digits than its factorization.

57531293 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 22686.

The product of its digits is 28350, while the sum is 35.

The square root of 57531293 is about 7584.9385627044. The cubic root of 57531293 is about 386.0421374708.

The spelling of 57531293 in words is "fifty-seven million, five hundred thirty-one thousand, two hundred ninety-three".