5257787 has 4 divisors (see below), whose sum is σ = 5439120. Its totient is φ = 5076456.

The previous prime is 5257783. The next prime is 5257789. The reversal of 5257787 is 7877525.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 5257787 - 2² = 5257783 is a prime.

It is an Ulam number.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (5257781) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 90623 + ... + 90680.

It is an arithmetic number, because the mean of its divisors is an integer number (1359780).

Almost surely, 2^5257787 is an apocalyptic number.

5257787 is a deficient number, since it is larger than the sum of its proper divisors (181333).

5257787 is a wasteful number, since it uses less digits than its factorization.

5257787 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 181332.

The product of its digits is 137200, while the sum is 41.

The square root of 5257787 is about 2292.9864805533. The cubic root of 5257787 is about 173.8872193803.

The spelling of 5257787 in words is "five million, two hundred fifty-seven thousand, seven hundred eighty-seven".