57263009 has 4 divisors (see below), whose sum is σ = 57376020. Its totient is φ = 57150000.

The previous prime is 57262993. The next prime is 57263027. The reversal of 57263009 is 90036275.

57263009 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

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 24453025 + 32809984 = 4945^2 + 5728^2 .

It is a cyclic number.

It is not a de Polignac number, because 57263009 - 2⁴ = 57262993 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (57263039) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 55742 + ... + 56759.

It is an arithmetic number, because the mean of its divisors is an integer number (14344005).

Almost surely, 2^57263009 is an apocalyptic number.

It is an amenable number.

57263009 is a deficient number, since it is larger than the sum of its proper divisors (113011).

57263009 is a wasteful number, since it uses less digits than its factorization.

57263009 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 113010.

The product of its (nonzero) digits is 11340, while the sum is 32.

The square root of 57263009 is about 7567.2325852983. The cubic root of 57263009 is about 385.4411292672.

The spelling of 57263009 in words is "fifty-seven million, two hundred sixty-three thousand, nine".