66551050 has 24 divisors (see below), whose sum is σ = 124000992. Its totient is φ = 26574000.

The previous prime is 66551047. The next prime is 66551063. The reversal of 66551050 is 5015566.

It is a super-2 number, since 2×66551050² = 8858084512205000, which contains 22 as substring.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 50905 + ... + 52195.

It is an arithmetic number, because the mean of its divisors is an integer number (5166708).

Almost surely, 2^66551050 is an apocalyptic number.

66551050 is a deficient number, since it is larger than the sum of its proper divisors (57449942).

66551050 is a wasteful number, since it uses less digits than its factorization.

66551050 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2334 (or 2329 counting only the distinct ones).

The product of its (nonzero) digits is 4500, while the sum is 28.

The square root of 66551050 is about 8157.8826909928. The cubic root of 66551050 is about 405.2455960971.

It can be divided in two parts, 665 and 51050, that added together give a palindrome (51715).

The spelling of 66551050 in words is "sixty-six million, five hundred fifty-one thousand, fifty".