5577878 has 4 divisors (see below), whose sum is σ = 8366820. Its totient is φ = 2788938.

The previous prime is 5577851. The next prime is 5577959. The reversal of 5577878 is 8787755.

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

It is a super-2 number, since 2×5577878² = 62225445965768, which contains 22 as substring.

It is an Ulam number.

It is a congruent number.

It is an unprimeable number.

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 as a sum of consecutive naturals, namely, 1394468 + ... + 1394471.

It is an arithmetic number, because the mean of its divisors is an integer number (2091705).

Almost surely, 2^5577878 is an apocalyptic number.

5577878 is a deficient number, since it is larger than the sum of its proper divisors (2788942).

5577878 is a wasteful number, since it uses less digits than its factorization.

5577878 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2788941.

The product of its digits is 548800, while the sum is 47.

The square root of 5577878 is about 2361.7531623775. The cubic root of 5577878 is about 177.3466558982.

The spelling of 5577878 in words is "five million, five hundred seventy-seven thousand, eight hundred seventy-eight".