31025532434425 has 24 divisors (see below), whose sum is σ = 39072019873536. Its totient is φ = 24433593455040.

The previous prime is 31025532434417. The next prime is 31025532434443. The reversal of 31025532434425 is 52443423552013.

It is not a de Polignac number, because 31025532434425 - 2³ = 31025532434417 is a prime.

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, 3702409 + ... + 8703958.

It is an arithmetic number, because the mean of its divisors is an integer number (1628000828064).

Almost surely, 2^{31025532434425} is an apocalyptic number.

It is an amenable number.

31025532434425 is a deficient number, since it is larger than the sum of its proper divisors (8046487439111).

31025532434425 is a wasteful number, since it uses less digits than its factorization.

31025532434425 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 12407937 (or 12407932 counting only the distinct ones).

The product of its (nonzero) digits is 1728000, while the sum is 43.

Adding to 31025532434425 its reverse (52443423552013), we get a palindrome (83468955986438).

The spelling of 31025532434425 in words is "thirty-one trillion, twenty-five billion, five hundred thirty-two million, four hundred thirty-four thousand, four hundred twenty-five".