5207402857 has 2 divisors, whose sum is σ = 5207402858. Its totient is φ = 5207402856.

The previous prime is 5207402839. The next prime is 5207402861. The reversal of 5207402857 is 7582047025.

It is a happy number.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 3606122601 + 1601280256 = 60051^2 + 40016^2 .

It is a cyclic number.

It is not a de Polignac number, because 5207402857 - 2⁷ = 5207402729 is a prime.

It is not a weakly prime, because it can be changed into another prime (5207402897) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 2603701428 + 2603701429.

It is an arithmetic number, because the mean of its divisors is an integer number (2603701429).

Almost surely, 2^5207402857 is an apocalyptic number.

It is an amenable number.

5207402857 is a deficient number, since it is larger than the sum of its proper divisors (1).

5207402857 is an equidigital number, since it uses as much as digits as its factorization.

5207402857 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 156800, while the sum is 40.

The square root of 5207402857 is about 72162.3368316187. The cubic root of 5207402857 is about 1733.2999547279.

The spelling of 5207402857 in words is "five billion, two hundred seven million, four hundred two thousand, eight hundred fifty-seven".