13421525305 has 16 divisors (see below), whose sum is σ = 16467945984. Its totient is φ = 10497919680.

The previous prime is 13421525269. The next prime is 13421525309. The reversal of 13421525305 is 50352512431.

It is not a de Polignac number, because 13421525305 - 2⁹ = 13421524793 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (13421525309) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 80817 + ... + 182686.

It is an arithmetic number, because the mean of its divisors is an integer number (1029246624).

Almost surely, 2^13421525305 is an apocalyptic number.

It is an amenable number.

13421525305 is a deficient number, since it is larger than the sum of its proper divisors (3046420679).

13421525305 is a wasteful number, since it uses less digits than its factorization.

13421525305 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 263736.

The product of its (nonzero) digits is 18000, while the sum is 31.

The spelling of 13421525305 in words is "thirteen billion, four hundred twenty-one million, five hundred twenty-five thousand, three hundred five".