5257259249 has 16 divisors (see below), whose sum is σ = 5877900864. Its totient is φ = 4660756800.

The previous prime is 5257259243. The next prime is 5257259257. The reversal of 5257259249 is 9429527525.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-5257259249 is a prime.

It is a super-2 number, since 2×5257259249² = 55277549622392088002, which contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 5257259197 and 5257259206.

It is not an unprimeable number, because it can be changed into a prime (5257259243) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 300359 + ... + 317379.

It is an arithmetic number, because the mean of its divisors is an integer number (367368804).

Almost surely, 2^5257259249 is an apocalyptic number.

It is an amenable number.

5257259249 is a deficient number, since it is larger than the sum of its proper divisors (620641615).

5257259249 is a wasteful number, since it uses less digits than its factorization.

5257259249 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 17728.

The product of its digits is 2268000, while the sum is 50.

The square root of 5257259249 is about 72506.9600038507. The cubic root of 5257259249 is about 1738.8140120212.

The spelling of 5257259249 in words is "five billion, two hundred fifty-seven million, two hundred fifty-nine thousand, two hundred forty-nine".