57276347 has 4 divisors (see below), whose sum is σ = 57331896. Its totient is φ = 57220800.

The previous prime is 57276337. The next prime is 57276353. The reversal of 57276347 is 74367275.

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

It is a cyclic number.

It is not a de Polignac number, because 57276347 - 2⁶ = 57276283 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (57276337) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 26198 + ... + 28299.

It is an arithmetic number, because the mean of its divisors is an integer number (14332974).

Almost surely, 2^57276347 is an apocalyptic number.

57276347 is a deficient number, since it is larger than the sum of its proper divisors (55549).

57276347 is a wasteful number, since it uses less digits than its factorization.

57276347 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 55548.

The product of its digits is 246960, while the sum is 41.

The square root of 57276347 is about 7568.1138337105. The cubic root of 57276347 is about 385.4710532662.

The spelling of 57276347 in words is "fifty-seven million, two hundred seventy-six thousand, three hundred forty-seven".