42505401325 has 48 divisors (see below), whose sum is σ = 56733868800. Its totient is φ = 31474206720.

The previous prime is 42505401319. The next prime is 42505401343. The reversal of 42505401325 is 52310450524.

It is not a de Polignac number, because 42505401325 - 2³ = 42505401317 is a prime.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 29869564 + ... + 29870986.

It is an arithmetic number, because the mean of its divisors is an integer number (1181955600).

Almost surely, 2^42505401325 is an apocalyptic number.

It is an amenable number.

42505401325 is a deficient number, since it is larger than the sum of its proper divisors (14228467475).

42505401325 is a wasteful number, since it uses less digits than its factorization.

42505401325 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2566 (or 2561 counting only the distinct ones).

The product of its (nonzero) digits is 24000, while the sum is 31.

Adding to 42505401325 its reverse (52310450524), we get a palindrome (94815851849).

The spelling of 42505401325 in words is "forty-two billion, five hundred five million, four hundred one thousand, three hundred twenty-five".