612706550 has 12 divisors (see below), whose sum is σ = 1139634276. Its totient is φ = 245082600.

The previous prime is 612706543. The next prime is 612706559. The reversal of 612706550 is 55607216.

It is a happy number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (612706559) 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 in 5 ways as a sum of consecutive naturals, for example, 6127016 + ... + 6127115.

It is an arithmetic number, because the mean of its divisors is an integer number (94969523).

Almost surely, 2^612706550 is an apocalyptic number.

612706550 is a deficient number, since it is larger than the sum of its proper divisors (526927726).

612706550 is a wasteful number, since it uses less digits than its factorization.

612706550 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 12254143 (or 12254138 counting only the distinct ones).

The product of its (nonzero) digits is 12600, while the sum is 32.

The square root of 612706550 is about 24752.9099299456. The cubic root of 612706550 is about 849.3450779828.

The spelling of 612706550 in words is "six hundred twelve million, seven hundred six thousand, five hundred fifty".