5257943136 has 144 divisors (see below), whose sum is σ = 15558706800. Its totient is φ = 1682279424.

The previous prime is 5257943123. The next prime is 5257943137. The reversal of 5257943136 is 6313497525.

5257943136 is a `hidden beast` number, since 5 + 2 + 579 + 43 + 1 + 36 = 666.

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

It is a junction number, because it is equal to n+sod(n) for n = 5257943091 and 5257943100.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (5257943137) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 1493250 + ... + 1496766.

It is an arithmetic number, because the mean of its divisors is an integer number (108046575).

Almost surely, 2^5257943136 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 5257943136, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (7779353400).

5257943136 is an abundant number, since it is smaller than the sum of its proper divisors (10300763664).

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

5257943136 is a wasteful number, since it uses less digits than its factorization.

5257943136 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3741 (or 3730 counting only the distinct ones).

The product of its digits is 680400, while the sum is 45.

The square root of 5257943136 is about 72511.6758598227. The cubic root of 5257943136 is about 1738.8894062321.

The spelling of 5257943136 in words is "five billion, two hundred fifty-seven million, nine hundred forty-three thousand, one hundred thirty-six".