5259746821 has 8 divisors (see below), whose sum is σ = 6011960960. Its totient is φ = 4507738128.

The previous prime is 5259746819. The next prime is 5259746827. The reversal of 5259746821 is 1286479525.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 5259746821 - 2¹ = 5259746819 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (5259746827) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 8095 + ... + 102883.

It is an arithmetic number, because the mean of its divisors is an integer number (751495120).

Almost surely, 2^5259746821 is an apocalyptic number.

It is an amenable number.

5259746821 is a deficient number, since it is larger than the sum of its proper divisors (752214139).

5259746821 is an equidigital number, since it uses as much as digits as its factorization.

5259746821 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 102723.

The product of its digits is 1209600, while the sum is 49.

The square root of 5259746821 is about 72524.1119973213. Note that the first 3 decimals coincide. The cubic root of 5259746821 is about 1739.0882197281.

The spelling of 5259746821 in words is "five billion, two hundred fifty-nine million, seven hundred forty-six thousand, eight hundred twenty-one".