5551973 has 4 divisors (see below), whose sum is σ = 6345120. Its totient is φ = 4758828.

The previous prime is 5551967. The next prime is 5551981. The reversal of 5551973 is 3791555.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 5551973 - 2⁴ = 5551957 is a prime.

It is an Ulam number.

It is a Duffinian number.

It is a Curzon number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (5551373) by changing a digit.

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 in 3 ways as a sum of consecutive naturals, for example, 396563 + ... + 396576.

It is an arithmetic number, because the mean of its divisors is an integer number (1586280).

Almost surely, 2^5551973 is an apocalyptic number.

It is an amenable number.

5551973 is a deficient number, since it is larger than the sum of its proper divisors (793147).

5551973 is an equidigital number, since it uses as much as digits as its factorization.

5551973 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 793146.

The product of its digits is 23625, while the sum is 35.

The square root of 5551973 is about 2356.2625065981. The cubic root of 5551973 is about 177.0716830106.

The spelling of 5551973 in words is "five million, five hundred fifty-one thousand, nine hundred seventy-three".