55587850 has 12 divisors (see below), whose sum is σ = 103393494. Its totient is φ = 22235120.

The previous prime is 55587811. The next prime is 55587859. The reversal of 55587850 is 5878555.

It can be written as a sum of positive squares in 3 ways, for example, as 54007801 + 1580049 = 7349^2 + 1257^2 .

It is a junction number, because it is equal to n+sod(n) for n = 55587797 and 55587806.

It is not an unprimeable number, because it can be changed into a prime (55587859) by changing a digit.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 555829 + ... + 555928.

Almost surely, 2^55587850 is an apocalyptic number.

55587850 is a gapful number since it is divisible by the number (50) formed by its first and last digit.

55587850 is a deficient number, since it is larger than the sum of its proper divisors (47805644).

55587850 is a wasteful number, since it uses less digits than its factorization.

55587850 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1111769 (or 1111764 counting only the distinct ones).

The product of its (nonzero) digits is 280000, while the sum is 43.

The square root of 55587850 is about 7455.7259874542. The cubic root of 55587850 is about 381.6453356838.

It can be divided in two parts, 5 and 5587850, that added together give a palindrome (5587855).

The spelling of 55587850 in words is "fifty-five million, five hundred eighty-seven thousand, eight hundred fifty".