31254423323525 has 12 divisors (see below), whose sum is σ = 38755585025472. Its totient is φ = 25003474075440.

The previous prime is 31254423323477. The next prime is 31254423323549. The reversal of 31254423323525 is 52532332445213.

It is not a de Polignac number, because 31254423323525 - 2²⁴ = 31254406546309 is a prime.

It is a super-2 number, since 2×31254423323525² (a number of 28 digits) contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 9855494 + ... + 12634856.

It is an arithmetic number, because the mean of its divisors is an integer number (3229632085456).

Almost surely, 2^{31254423323525} is an apocalyptic number.

It is an amenable number.

31254423323525 is a deficient number, since it is larger than the sum of its proper divisors (7501161701947).

31254423323525 is a wasteful number, since it uses less digits than its factorization.

31254423323525 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3229180 (or 3229175 counting only the distinct ones).

The product of its digits is 2592000, while the sum is 44.

Adding to 31254423323525 its reverse (52532332445213), we get a palindrome (83786755768738).

The spelling of 31254423323525 in words is "thirty-one trillion, two hundred fifty-four billion, four hundred twenty-three million, three hundred twenty-three thousand, five hundred twenty-five".