4955551 has 4 divisors (see below), whose sum is σ = 5247072. Its totient is φ = 4664032.

The previous prime is 4955537. The next prime is 4955563. The reversal of 4955551 is 1555594.

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

It is a cyclic number.

It is not a de Polignac number, because 4955551 - 2⁵ = 4955519 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (4955581) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 145735 + ... + 145768.

It is an arithmetic number, because the mean of its divisors is an integer number (1311768).

Almost surely, 2^4955551 is an apocalyptic number.

4955551 is a deficient number, since it is larger than the sum of its proper divisors (291521).

4955551 is a wasteful number, since it uses less digits than its factorization.

4955551 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 291520.

The product of its digits is 22500, while the sum is 34.

The square root of 4955551 is about 2226.1066910640. The cubic root of 4955551 is about 170.4893742142.

The spelling of 4955551 in words is "four million, nine hundred fifty-five thousand, five hundred fifty-one".