30255679405 has 24 divisors (see below), whose sum is σ = 43375943448. Its totient is φ = 20186022528.

The previous prime is 30255679397. The next prime is 30255679427. The reversal of 30255679405 is 50497655203.

It can be written as a sum of positive squares in 4 ways, for example, as 11329899364 + 18925780041 = 106442^2 + 137571^2 .

It is not a de Polignac number, because 30255679405 - 2³ = 30255679397 is a prime.

It is a super-2 number, since 2×30255679405² (a number of 22 digits) contains 22 as substring.

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 23 ways as a sum of consecutive naturals, for example, 1659754 + ... + 1677883.

It is an arithmetic number, because the mean of its divisors is an integer number (1807330977).

Almost surely, 2^30255679405 is an apocalyptic number.

30255679405 is a gapful number since it is divisible by the number (35) formed by its first and last digit.

It is an amenable number.

30255679405 is a deficient number, since it is larger than the sum of its proper divisors (13120264043).

30255679405 is a wasteful number, since it uses less digits than its factorization.

30255679405 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3337693 (or 3337686 counting only the distinct ones).

The product of its (nonzero) digits is 1134000, while the sum is 46.

The spelling of 30255679405 in words is "thirty billion, two hundred fifty-five million, six hundred seventy-nine thousand, four hundred five".