6247042057 has 2 divisors, whose sum is σ = 6247042058. Its totient is φ = 6247042056.

The previous prime is 6247042049. The next prime is 6247042063. The reversal of 6247042057 is 7502407426.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 5968953081 + 278088976 = 77259^2 + 16676^2 .

It is a cyclic number.

It is not a de Polignac number, because 6247042057 - 2³ = 6247042049 is a prime.

It is not a weakly prime, because it can be changed into another prime (6247042957) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 3123521028 + 3123521029.

It is an arithmetic number, because the mean of its divisors is an integer number (3123521029).

Almost surely, 2^6247042057 is an apocalyptic number.

It is an amenable number.

6247042057 is a deficient number, since it is larger than the sum of its proper divisors (1).

6247042057 is an equidigital number, since it uses as much as digits as its factorization.

6247042057 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 94080, while the sum is 37.

The square root of 6247042057 is about 79038.2316160983. The cubic root of 6247042057 is about 1841.7251126605.

The spelling of 6247042057 in words is "six billion, two hundred forty-seven million, forty-two thousand, fifty-seven".