5551478 has 4 divisors (see below), whose sum is σ = 8327220. Its totient is φ = 2775738.

The previous prime is 5551463. The next prime is 5551489. The reversal of 5551478 is 8741555.

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

It is a Curzon number.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1387868 + ... + 1387871.

It is an arithmetic number, because the mean of its divisors is an integer number (2081805).

Almost surely, 2^5551478 is an apocalyptic number.

5551478 is a deficient number, since it is larger than the sum of its proper divisors (2775742).

5551478 is a wasteful number, since it uses less digits than its factorization.

5551478 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2775741.

The product of its digits is 28000, while the sum is 35.

The square root of 5551478 is about 2356.1574650265. The cubic root of 5551478 is about 177.0664204316.

The spelling of 5551478 in words is "five million, five hundred fifty-one thousand, four hundred seventy-eight".