57016782247 has 2 divisors, whose sum is σ = 57016782248. Its totient is φ = 57016782246.

The previous prime is 57016782233. The next prime is 57016782253. The reversal of 57016782247 is 74228761075.

It is a strong prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-57016782247 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 57016782247.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (57016782227) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 28508391123 + 28508391124.

It is an arithmetic number, because the mean of its divisors is an integer number (28508391124).

Almost surely, 2^57016782247 is an apocalyptic number.

57016782247 is a deficient number, since it is larger than the sum of its proper divisors (1).

57016782247 is an equidigital number, since it uses as much as digits as its factorization.

57016782247 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 1317120, while the sum is 49.

The spelling of 57016782247 in words is "fifty-seven billion, sixteen million, seven hundred eighty-two thousand, two hundred forty-seven".