57441247 has 2 divisors, whose sum is σ = 57441248. Its totient is φ = 57441246.

The previous prime is 57441227. The next prime is 57441253. The reversal of 57441247 is 74214475.

It is a happy number.

It is a strong prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-57441247 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (57441227) 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 as a sum of consecutive naturals, namely, 28720623 + 28720624.

It is an arithmetic number, because the mean of its divisors is an integer number (28720624).

Almost surely, 2^57441247 is an apocalyptic number.

57441247 is a deficient number, since it is larger than the sum of its proper divisors (1).

57441247 is an equidigital number, since it uses as much as digits as its factorization.

57441247 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 31360, while the sum is 34.

The square root of 57441247 is about 7579.0003958306. Note that the first 3 decimals coincide. The cubic root of 57441247 is about 385.8406256782.

The spelling of 57441247 in words is "fifty-seven million, four hundred forty-one thousand, two hundred forty-seven".