612739055 has 16 divisors (see below), whose sum is σ = 773587584. Its totient is φ = 465304320.

The previous prime is 612739033. The next prime is 612739063. The reversal of 612739055 is 550937216.

It is a happy number.

It is not a de Polignac number, because 612739055 - 2⁶ = 612738991 is a prime.

It is a Duffinian number.

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 15 ways as a sum of consecutive naturals, for example, 32807 + ... + 47976.

It is an arithmetic number, because the mean of its divisors is an integer number (48349224).

Almost surely, 2^612739055 is an apocalyptic number.

612739055 is a deficient number, since it is larger than the sum of its proper divisors (160848529).

612739055 is a wasteful number, since it uses less digits than its factorization.

612739055 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 80866.

The product of its (nonzero) digits is 56700, while the sum is 38.

The square root of 612739055 is about 24753.5665107071. The cubic root of 612739055 is about 849.3600973933.

The spelling of 612739055 in words is "six hundred twelve million, seven hundred thirty-nine thousand, fifty-five".