13214210525 has 24 divisors (see below), whose sum is σ = 16882610664. Its totient is φ = 10252569600.

The previous prime is 13214210519. The next prime is 13214210549. The reversal of 13214210525 is 52501241231.

It can be written as a sum of positive squares in 12 ways, for example, as 5176370809 + 8037839716 = 71947^2 + 89654^2 .

It is a de Polignac number, because none of the positive numbers 2^k-13214210525 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 13214210494 and 13214210503.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 266705 + ... + 312345.

It is an arithmetic number, because the mean of its divisors is an integer number (703442111).

Almost surely, 2^13214210525 is an apocalyptic number.

It is an amenable number.

13214210525 is a deficient number, since it is larger than the sum of its proper divisors (3668400139).

13214210525 is a wasteful number, since it uses less digits than its factorization.

13214210525 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 46001 (or 45996 counting only the distinct ones).

The product of its (nonzero) digits is 2400, while the sum is 26.

Adding to 13214210525 its reverse (52501241231), we get a palindrome (65715451756).

The spelling of 13214210525 in words is "thirteen billion, two hundred fourteen million, two hundred ten thousand, five hundred twenty-five".