5257757465 has 8 divisors (see below), whose sum is σ = 6321422088. Its totient is φ = 4198130560.

The previous prime is 5257757459. The next prime is 5257757471. The reversal of 5257757465 is 5647577525.

It is an interprime number because it is at equal distance from previous prime (5257757459) and next prime (5257757471).

It can be written as a sum of positive squares in 4 ways, for example, as 71453209 + 5186304256 = 8453^2 + 72016^2 .

It is a sphenic number, since it is the product of 3 distinct primes.

It is a de Polignac number, because none of the positive numbers 2^k-5257757465 is a prime.

It is a Duffinian number.

It is a Curzon number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 1006562 + ... + 1011771.

It is an arithmetic number, because the mean of its divisors is an integer number (790177761).

Almost surely, 2^5257757465 is an apocalyptic number.

It is an amenable number.

5257757465 is a deficient number, since it is larger than the sum of its proper divisors (1063664623).

5257757465 is a wasteful number, since it uses less digits than its factorization.

5257757465 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2018859.

The product of its digits is 10290000, while the sum is 53.

The square root of 5257757465 is about 72510.3955650498. The cubic root of 5257757465 is about 1738.8689378267.

The spelling of 5257757465 in words is "five billion, two hundred fifty-seven million, seven hundred fifty-seven thousand, four hundred sixty-five".