57147649 has 8 divisors (see below), whose sum is σ = 64783040. Its totient is φ = 49975056.

The previous prime is 57147613. The next prime is 57147653. The reversal of 57147649 is 94674175.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 57147649 - 2¹¹ = 57145601 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (57147679) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (7) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 115437 + ... + 115930.

It is an arithmetic number, because the mean of its divisors is an integer number (8097880).

Almost surely, 2^57147649 is an apocalyptic number.

It is an amenable number.

57147649 is a deficient number, since it is larger than the sum of its proper divisors (7635391).

57147649 is a wasteful number, since it uses less digits than its factorization.

57147649 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 231399.

The product of its digits is 211680, while the sum is 43.

The square root of 57147649 is about 7559.6064050981. The cubic root of 57147649 is about 385.1821233123.

The spelling of 57147649 in words is "fifty-seven million, one hundred forty-seven thousand, six hundred forty-nine".