55791982 has 8 divisors (see below), whose sum is σ = 84035952. Its totient is φ = 27780000.

The previous prime is 55791949. The next prime is 55792049. The reversal of 55791982 is 28919755.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a super-2 number, since 2×55791982² = 6225490510976648, which contains 22 as substring.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 57394 + ... + 58357.

It is an arithmetic number, because the mean of its divisors is an integer number (10504494).

Almost surely, 2^55791982 is an apocalyptic number.

55791982 is a deficient number, since it is larger than the sum of its proper divisors (28243970).

55791982 is a wasteful number, since it uses less digits than its factorization.

55791982 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 115994.

The product of its digits is 226800, while the sum is 46.

The square root of 55791982 is about 7469.4030551310. The cubic root of 55791982 is about 382.1119295918. Note that the first 3 decimals are identical.

The spelling of 55791982 in words is "fifty-five million, seven hundred ninety-one thousand, nine hundred eighty-two".