612398255 has 16 divisors (see below), whose sum is σ = 840767040. Its totient is φ = 419476992.

The previous prime is 612398243. The next prime is 612398261. The reversal of 612398255 is 552893216.

It is a cyclic number.

It is not a de Polignac number, because 612398255 - 2⁴ = 612398239 is a prime.

It is a congruent number.

It is an unprimeable number.

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 15 ways as a sum of consecutive naturals, for example, 25241 + ... + 43149.

It is an arithmetic number, because the mean of its divisors is an integer number (52547940).

Almost surely, 2^612398255 is an apocalyptic number.

612398255 is a deficient number, since it is larger than the sum of its proper divisors (228368785).

612398255 is a wasteful number, since it uses less digits than its factorization.

612398255 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 18898.

The product of its digits is 129600, while the sum is 41.

The square root of 612398255 is about 24746.6816967447. The cubic root of 612398255 is about 849.2025993519.

The spelling of 612398255 in words is "six hundred twelve million, three hundred ninety-eight thousand, two hundred fifty-five".