13625244531 has 6 divisors (see below), whose sum is σ = 19680908780. Its totient is φ = 9083496348.

The previous prime is 13625244497. The next prime is 13625244539. The reversal of 13625244531 is 13544252631.

13625244531 is a `hidden beast` number, since 1 + 3 + 62 + 524 + 45 + 31 = 666.

13625244531 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is not a de Polignac number, because 13625244531 - 2⁶ = 13625244467 is a prime.

It is a super-2 number, since 2×13625244531² (a number of 21 digits) contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (13625244539) by changing a digit.

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 5 ways as a sum of consecutive naturals, for example, 756958021 + ... + 756958038.

Almost surely, 2^13625244531 is an apocalyptic number.

13625244531 is a deficient number, since it is larger than the sum of its proper divisors (6055664249).

13625244531 is a wasteful number, since it uses less digits than its factorization.

13625244531 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1513916065 (or 1513916062 counting only the distinct ones).

The product of its digits is 86400, while the sum is 36.

The spelling of 13625244531 in words is "thirteen billion, six hundred twenty-five million, two hundred forty-four thousand, five hundred thirty-one".