5219257681 has 24 divisors (see below), whose sum is σ = 6179507712. Its totient is φ = 4392009600.

The previous prime is 5219257679. The next prime is 5219257691. The reversal of 5219257681 is 1867529125.

It is not a de Polignac number, because 5219257681 - 2¹ = 5219257679 is a prime.

It is a super-2 number, since 2×5219257681² = 54481301481354995522, which contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (5219257621) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 56025 + ... + 116521.

It is an arithmetic number, because the mean of its divisors is an integer number (257479488).

Almost surely, 2^5219257681 is an apocalyptic number.

It is an amenable number.

5219257681 is a deficient number, since it is larger than the sum of its proper divisors (960250031).

5219257681 is a wasteful number, since it uses less digits than its factorization.

5219257681 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 60573 (or 60562 counting only the distinct ones).

The product of its digits is 302400, while the sum is 46.

The square root of 5219257681 is about 72244.4301036419. The cubic root of 5219257681 is about 1734.6142626756.

The spelling of 5219257681 in words is "five billion, two hundred nineteen million, two hundred fifty-seven thousand, six hundred eighty-one".