57348509 has 4 divisors (see below), whose sum is σ = 57384540. Its totient is φ = 57312480.

The previous prime is 57348503. The next prime is 57348547. The reversal of 57348509 is 90584375.

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 39413284 + 17935225 = 6278^2 + 4235^2 .

It is a cyclic number.

It is not a de Polignac number, because 57348509 - 2⁸ = 57348253 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (57348503) 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, 15512 + ... + 18849.

It is an arithmetic number, because the mean of its divisors is an integer number (14346135).

Almost surely, 2^57348509 is an apocalyptic number.

It is an amenable number.

57348509 is a deficient number, since it is larger than the sum of its proper divisors (36031).

57348509 is a wasteful number, since it uses less digits than its factorization.

57348509 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 36030.

The product of its (nonzero) digits is 151200, while the sum is 41.

The square root of 57348509 is about 7572.8798353070. The cubic root of 57348509 is about 385.6328692683.

The spelling of 57348509 in words is "fifty-seven million, three hundred forty-eight thousand, five hundred nine".