13542245425 has 24 divisors (see below), whose sum is σ = 16891403256. Its totient is φ = 10770071040.

The previous prime is 13542245411. The next prime is 13542245443. The reversal of 13542245425 is 52454224531.

It can be written as a sum of positive squares in 12 ways, for example, as 1396442161 + 12145803264 = 37369^2 + 110208^2 .

It is not a de Polignac number, because 13542245425 - 2⁹ = 13542244913 is a prime.

It is a super-2 number, since 2×13542245425² (a number of 21 digits) contains 22 as substring.

It is a Duffinian 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, 4641067 + ... + 4643983.

It is an arithmetic number, because the mean of its divisors is an integer number (703808469).

Almost surely, 2^13542245425 is an apocalyptic number.

It is an amenable number.

13542245425 is a deficient number, since it is larger than the sum of its proper divisors (3349157831).

13542245425 is a wasteful number, since it uses less digits than its factorization.

13542245425 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3957 (or 3952 counting only the distinct ones).

The product of its digits is 192000, while the sum is 37.

Adding to 13542245425 its reverse (52454224531), we get a palindrome (65996469956).

The spelling of 13542245425 in words is "thirteen billion, five hundred forty-two million, two hundred forty-five thousand, four hundred twenty-five".