57060813 has 4 divisors (see below), whose sum is σ = 76081088. Its totient is φ = 38040540.

The previous prime is 57060811. The next prime is 57060827. The reversal of 57060813 is 31806075.

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 not a de Polignac number, because 57060813 - 2¹ = 57060811 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 (57060811) 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, 9510133 + ... + 9510138.

It is an arithmetic number, because the mean of its divisors is an integer number (19020272).

Almost surely, 2^57060813 is an apocalyptic number.

It is an amenable number.

57060813 is a deficient number, since it is larger than the sum of its proper divisors (19020275).

57060813 is a wasteful number, since it uses less digits than its factorization.

57060813 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 19020274.

The product of its (nonzero) digits is 5040, while the sum is 30.

The square root of 57060813 is about 7553.8608009415. The cubic root of 57060813 is about 384.9869293364.

Adding to 57060813 its reverse (31806075), we get a palindrome (88866888).

The spelling of 57060813 in words is "fifty-seven million, sixty thousand, eight hundred thirteen".