5257778 has 4 divisors (see below), whose sum is σ = 7886670. Its totient is φ = 2628888.

The previous prime is 5257771. The next prime is 5257781. The reversal of 5257778 is 8777525.

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

It can be written as a sum of positive squares in only one way, i.e., 2845969 + 2411809 = 1687^2 + 1553^2 .

It is a super-3 number, since 3×5257778³ (a number of 21 digits) contains 333 as substring.

It is not an unprimeable number, because it can be changed into a prime (5257771) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1314443 + ... + 1314446.

Almost surely, 2^5257778 is an apocalyptic number.

5257778 is a deficient number, since it is larger than the sum of its proper divisors (2628892).

5257778 is a wasteful number, since it uses less digits than its factorization.

5257778 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2628891.

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

The square root of 5257778 is about 2292.9845180463. The cubic root of 5257778 is about 173.8871201633.

The spelling of 5257778 in words is "five million, two hundred fifty-seven thousand, seven hundred seventy-eight".