5551982 has 4 divisors (see below), whose sum is σ = 8327976. Its totient is φ = 2775990.

The previous prime is 5551981. The next prime is 5551999. The reversal of 5551982 is 2891555.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 2891555 = 5 ⋅578311.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (5551981) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1387994 + ... + 1387997.

It is an arithmetic number, because the mean of its divisors is an integer number (2081994).

Almost surely, 2^5551982 is an apocalyptic number.

5551982 is a deficient number, since it is larger than the sum of its proper divisors (2775994).

5551982 is a wasteful number, since it uses less digits than its factorization.

5551982 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2775993.

The product of its digits is 18000, while the sum is 35.

The square root of 5551982 is about 2356.2644164015. The cubic root of 5551982 is about 177.0717786909.

The spelling of 5551982 in words is "five million, five hundred fifty-one thousand, nine hundred eighty-two".