5577777 has 6 divisors (see below), whose sum is σ = 8056802. Its totient is φ = 3718512.

The previous prime is 5577769. The next prime is 5577797. The reversal of 5577777 is 7777755.

5577777 is a `hidden beast` number, since 5 + 577 + 7 + 77 = 666.

It can be written as a sum of positive squares in only one way, i.e., 5308416 + 269361 = 2304^2 + 519^2 .

It is not a de Polignac number, because 5577777 - 2³ = 5577769 is a prime.

It is a super-2 number, since 2×5577777² = 62223192523458, which contains 22 as substring.

It is a Duffinian number.

It is a plaindrome in base 10.

It is a zygodrome in base 10.

It is not an unprimeable number, because it can be changed into a prime (5577727) by changing a digit.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 309868 + ... + 309885.

Almost surely, 2^5577777 is an apocalyptic number.

It is an amenable number.

5577777 is a deficient number, since it is larger than the sum of its proper divisors (2479025).

5577777 is a wasteful number, since it uses less digits than its factorization.

5577777 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 619759 (or 619756 counting only the distinct ones).

The product of its digits is 420175, while the sum is 45.

The square root of 5577777 is about 2361.7317798599. The cubic root of 5577777 is about 177.3455854720.

The spelling of 5577777 in words is "five million, five hundred seventy-seven thousand, seven hundred seventy-seven".