5185104257 has 4 divisors (see below), whose sum is σ = 5272987440. Its totient is φ = 5097221076.

The previous prime is 5185104233. The next prime is 5185104259. The reversal of 5185104257 is 7524015815.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4, and also an emirpimes, since its reverse is a distinct semiprime: 7524015815 = 5 ⋅1504803163.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-5185104257 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 5185104257.

It is not an unprimeable number, because it can be changed into a prime (5185104259) 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, 43941503 + ... + 43941620.

It is an arithmetic number, because the mean of its divisors is an integer number (1318246860).

Almost surely, 2^5185104257 is an apocalyptic number.

It is an amenable number.

5185104257 is a deficient number, since it is larger than the sum of its proper divisors (87883183).

5185104257 is an equidigital number, since it uses as much as digits as its factorization.

5185104257 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 87883182.

The product of its (nonzero) digits is 56000, while the sum is 38.

The square root of 5185104257 is about 72007.6680430633. The cubic root of 5185104257 is about 1730.8223625413.

The spelling of 5185104257 in words is "five billion, one hundred eighty-five million, one hundred four thousand, two hundred fifty-seven".