5259381557 has 4 divisors (see below), whose sum is σ = 5381692800. Its totient is φ = 5137070316.

The previous prime is 5259381541. The next prime is 5259381577. The reversal of 5259381557 is 7551839525.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 5259381557 - 2⁴ = 5259381541 is a prime.

It is a super-2 number, since 2×5259381557² = 55322188724223488498, which contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (5259381527) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 61155557 + ... + 61155642.

It is an arithmetic number, because the mean of its divisors is an integer number (1345423200).

Almost surely, 2^5259381557 is an apocalyptic number.

It is an amenable number.

5259381557 is a deficient number, since it is larger than the sum of its proper divisors (122311243).

5259381557 is a wasteful number, since it uses less digits than its factorization.

5259381557 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 122311242.

The product of its digits is 1890000, while the sum is 50.

The square root of 5259381557 is about 72521.5937290405. The cubic root of 5259381557 is about 1739.0479617051.

The spelling of 5259381557 in words is "five billion, two hundred fifty-nine million, three hundred eighty-one thousand, five hundred fifty-seven".