5208017257 has 4 divisors (see below), whose sum is σ = 5208236676. Its totient is φ = 5207797840.

The previous prime is 5208017179. The next prime is 5208017263. The reversal of 5208017257 is 7527108025.

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

It can be written as a sum of positive squares in 2 ways, for example, as 1858385881 + 3349631376 = 43109^2 + 57876^2 .

It is a cyclic number.

It is not a de Polignac number, because 5208017257 - 2¹⁵ = 5207984489 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (5208017357) 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, 69094 + ... + 123247.

It is an arithmetic number, because the mean of its divisors is an integer number (1302059169).

Almost surely, 2^5208017257 is an apocalyptic number.

It is an amenable number.

5208017257 is a deficient number, since it is larger than the sum of its proper divisors (219419).

5208017257 is a wasteful number, since it uses less digits than its factorization.

5208017257 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 219418.

The product of its (nonzero) digits is 39200, while the sum is 37.

The square root of 5208017257 is about 72166.5937744051. The cubic root of 5208017257 is about 1733.3681203530.

The spelling of 5208017257 in words is "five billion, two hundred eight million, seventeen thousand, two hundred fifty-seven".