13750725431 has 4 divisors (see below), whose sum is σ = 13751568000. Its totient is φ = 13749882864.

The previous prime is 13750725389. The next prime is 13750725449. The reversal of 13750725431 is 13452705731.

It is a happy number.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 13750725431 - 2⁶ = 13750725367 is a prime.

It is a super-2 number, since 2×13750725431² (a number of 21 digits) contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (13750725031) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 396311 + ... + 429608.

It is an arithmetic number, because the mean of its divisors is an integer number (3437892000).

Almost surely, 2^13750725431 is an apocalyptic number.

13750725431 is a deficient number, since it is larger than the sum of its proper divisors (842569).

13750725431 is an equidigital number, since it uses as much as digits as its factorization.

13750725431 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 842568.

The product of its (nonzero) digits is 88200, while the sum is 38.

The spelling of 13750725431 in words is "thirteen billion, seven hundred fifty million, seven hundred twenty-five thousand, four hundred thirty-one".