5257105581 has 48 divisors (see below), whose sum is σ = 9064462848. Its totient is φ = 2683497600.

The previous prime is 5257105571. The next prime is 5257105591. The reversal of 5257105581 is 1855017525.

It is a happy number.

It is an interprime number because it is at equal distance from previous prime (5257105571) and next prime (5257105591).

It is not a de Polignac number, because 5257105581 - 2⁵ = 5257105549 is a prime.

It is a super-2 number, since 2×5257105581² = 55274318179562695122, which contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (39).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (5257105531) by changing a digit.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 14871 + ... + 103611.

It is an arithmetic number, because the mean of its divisors is an integer number (188842976).

Almost surely, 2^5257105581 is an apocalyptic number.

It is an amenable number.

5257105581 is a deficient number, since it is larger than the sum of its proper divisors (3807357267).

5257105581 is a wasteful number, since it uses less digits than its factorization.

5257105581 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 88802 (or 88795 counting only the distinct ones).

The product of its (nonzero) digits is 70000, while the sum is 39.

The square root of 5257105581 is about 72505.9003185258. The cubic root of 5257105581 is about 1738.7970701977.

The spelling of 5257105581 in words is "five billion, two hundred fifty-seven million, one hundred five thousand, five hundred eighty-one".