612004585523 has 4 divisors (see below), whose sum is σ = 612556439280. Its totient is φ = 611452731768.

The previous prime is 612004585519. The next prime is 612004585547. The reversal of 612004585523 is 325585400216.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 612004585523 - 2² = 612004585519 is a prime.

It is a super-2 number, since 2×612004585523² (a number of 24 digits) contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (612004585573) by changing a digit.

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 3 ways as a sum of consecutive naturals, for example, 275925215 + ... + 275927432.

It is an arithmetic number, because the mean of its divisors is an integer number (153139109820).

Almost surely, 2^612004585523 is an apocalyptic number.

612004585523 is a deficient number, since it is larger than the sum of its proper divisors (551853757).

612004585523 is a wasteful number, since it uses less digits than its factorization.

612004585523 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 551853756.

The product of its (nonzero) digits is 288000, while the sum is 41.

Adding to 612004585523 its reverse (325585400216), we get a palindrome (937589985739).

The spelling of 612004585523 in words is "six hundred twelve billion, four million, five hundred eighty-five thousand, five hundred twenty-three".