13153220425 has 24 divisors (see below), whose sum is σ = 16880716440. Its totient is φ = 10154726400.

The previous prime is 13153220389. The next prime is 13153220429. The reversal of 13153220425 is 52402235131.

It can be written as a sum of positive squares in 12 ways, for example, as 6800971024 + 6352249401 = 82468^2 + 79701^2 .

It is not a de Polignac number, because 13153220425 - 2⁹ = 13153219913 is a prime.

It is a super-3 number, since 3×13153220425³ (a number of 31 digits) contains 333 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 13153220393 and 13153220402.

It is not an unprimeable number, because it can be changed into a prime (13153220429) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 2259819 + ... + 2265631.

It is an arithmetic number, because the mean of its divisors is an integer number (703363185).

Almost surely, 2^13153220425 is an apocalyptic number.

It is an amenable number.

13153220425 is a deficient number, since it is larger than the sum of its proper divisors (3727496015).

13153220425 is a wasteful number, since it uses less digits than its factorization.

13153220425 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 8973 (or 8968 counting only the distinct ones).

The product of its (nonzero) digits is 7200, while the sum is 28.

Adding to 13153220425 its reverse (52402235131), we get a palindrome (65555455556).

The spelling of 13153220425 in words is "thirteen billion, one hundred fifty-three million, two hundred twenty thousand, four hundred twenty-five".