5457778 has 4 divisors (see below), whose sum is σ = 8186670. Its totient is φ = 2728888.

The previous prime is 5457773. The next prime is 5457811. The reversal of 5457778 is 8777545.

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., 5414929 + 42849 = 2327^2 + 207^2 .

It is not an unprimeable number, because it can be changed into a prime (5457773) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1364443 + ... + 1364446.

Almost surely, 2^5457778 is an apocalyptic number.

5457778 is a deficient number, since it is larger than the sum of its proper divisors (2728892).

5457778 is a wasteful number, since it uses less digits than its factorization.

5457778 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2728891.

The product of its digits is 274400, while the sum is 43.

The square root of 5457778 is about 2336.1887766189. The cubic root of 5457778 is about 176.0645639502.

The spelling of 5457778 in words is "five million, four hundred fifty-seven thousand, seven hundred seventy-eight".