5260398624 has 144 divisors (see below), whose sum is σ = 16665831000. Its totient is φ = 1562738688.

The previous prime is 5260398581. The next prime is 5260398677. The reversal of 5260398624 is 4268930625.

It can be written as a sum of positive squares in 4 ways, for example, as 5021139600 + 239259024 = 70860^2 + 15468^2 .

It is a tau number, because it is divible by the number of its divisors (144).

It is a self number, because there is not a number n which added to its sum of digits gives 5260398624.

It is an unprimeable number.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 84352 + ... + 132800.

Almost surely, 2^5260398624 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 5260398624, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (8332915500).

5260398624 is an abundant number, since it is smaller than the sum of its proper divisors (11405432376).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

5260398624 is a wasteful number, since it uses less digits than its factorization.

5260398624 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 48507 (or 48496 counting only the distinct ones).

The product of its (nonzero) digits is 622080, while the sum is 45.

The square root of 5260398624 is about 72528.6055567043. The cubic root of 5260398624 is about 1739.1600543706.

The spelling of 5260398624 in words is "five billion, two hundred sixty million, three hundred ninety-eight thousand, six hundred twenty-four".