55982487 has 8 divisors (see below), whose sum is σ = 81429120. Its totient is φ = 33928760.

The previous prime is 55982477. The next prime is 55982491. The reversal of 55982487 is 78428955.

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

It is a cyclic number.

It is not a de Polignac number, because 55982487 - 2⁴ = 55982471 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (55982467) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 848187 + ... + 848252.

It is an arithmetic number, because the mean of its divisors is an integer number (10178640).

Almost surely, 2^55982487 is an apocalyptic number.

55982487 is a deficient number, since it is larger than the sum of its proper divisors (25446633).

55982487 is a wasteful number, since it uses less digits than its factorization.

55982487 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1696453.

The product of its digits is 806400, while the sum is 48.

The square root of 55982487 is about 7482.1445455163. The cubic root of 55982487 is about 382.5463500584.

The spelling of 55982487 in words is "fifty-five million, nine hundred eighty-two thousand, four hundred eighty-seven".