55249982 has 4 divisors (see below), whose sum is σ = 82874976. Its totient is φ = 27624990.

The previous prime is 55249981. The next prime is 55250003. The reversal of 55249982 is 28994255.

55249982 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

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

It is a super-2 number, since 2×55249982² = 6105121022000648, which contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (55249981) 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 as a sum of consecutive naturals, namely, 13812494 + ... + 13812497.

It is an arithmetic number, because the mean of its divisors is an integer number (20718744).

Almost surely, 2^55249982 is an apocalyptic number.

55249982 is a deficient number, since it is larger than the sum of its proper divisors (27624994).

55249982 is a wasteful number, since it uses less digits than its factorization.

55249982 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 27624993.

The product of its digits is 259200, while the sum is 44.

The square root of 55249982 is about 7433.0331628481. The cubic root of 55249982 is about 380.8705387931.

The spelling of 55249982 in words is "fifty-five million, two hundred forty-nine thousand, nine hundred eighty-two".