612040550 has 48 divisors (see below), whose sum is σ = 1249687872. Its totient is φ = 221162400.

The previous prime is 612040549. The next prime is 612040573. The reversal of 612040550 is 55040216.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 86237 + ... + 93063.

It is an arithmetic number, because the mean of its divisors is an integer number (26035164).

Almost surely, 2^612040550 is an apocalyptic number.

612040550 is an abundant number, since it is smaller than the sum of its proper divisors (637647322).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

612040550 is a wasteful number, since it uses less digits than its factorization.

612040550 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 7013 (or 7008 counting only the distinct ones).

The product of its (nonzero) digits is 1200, while the sum is 23.

The square root of 612040550 is about 24739.4533084302. The cubic root of 612040550 is about 849.0372259336.

Adding to 612040550 its reverse (55040216), we get a palindrome (667080766).

The spelling of 612040550 in words is "six hundred twelve million, forty thousand, five hundred fifty".