57452147 has 4 divisors (see below), whose sum is σ = 57514920. Its totient is φ = 57389376.

The previous prime is 57452141. The next prime is 57452149. The reversal of 57452147 is 74125475.

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

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-57452147 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (57452141) 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, 29993 + ... + 31850.

It is an arithmetic number, because the mean of its divisors is an integer number (14378730).

Almost surely, 2^57452147 is an apocalyptic number.

57452147 is a deficient number, since it is larger than the sum of its proper divisors (62773).

57452147 is an equidigital number, since it uses as much as digits as its factorization.

57452147 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 62772.

The product of its digits is 39200, while the sum is 35.

The square root of 57452147 is about 7579.7194539112. The cubic root of 57452147 is about 385.8650297261.

The spelling of 57452147 in words is "fifty-seven million, four hundred fifty-two thousand, one hundred forty-seven".