5198913257 has 4 divisors (see below), whose sum is σ = 5199109200. Its totient is φ = 5198717316.

The previous prime is 5198913241. The next prime is 5198913281. The reversal of 5198913257 is 7523198915.

5198913257 is digitally balanced in base 3, because in such base it contains all the possibile digits an equal number of times.

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.

It is a cyclic number.

It is not a de Polignac number, because 5198913257 - 2⁴ = 5198913241 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (5198913227) 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, 50507 + ... + 113792.

It is an arithmetic number, because the mean of its divisors is an integer number (1299777300).

Almost surely, 2^5198913257 is an apocalyptic number.

It is an amenable number.

5198913257 is a deficient number, since it is larger than the sum of its proper divisors (195943).

5198913257 is a wasteful number, since it uses less digits than its factorization.

5198913257 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 195942.

The product of its digits is 680400, while the sum is 50.

The square root of 5198913257 is about 72103.4899086029. The cubic root of 5198913257 is about 1732.3575126214.

The spelling of 5198913257 in words is "five billion, one hundred ninety-eight million, nine hundred thirteen thousand, two hundred fifty-seven".