40545205220425 has 12 divisors (see below), whose sum is σ = 50282432499600. Its totient is φ = 32432049320720.

The previous prime is 40545205220423. The next prime is 40545205220543. The reversal of 40545205220425 is 52402250254504.

It is not a de Polignac number, because 40545205220425 - 2¹ = 40545205220423 is a prime.

It is not an unprimeable number, because it can be changed into a prime (40545205220423) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 102670375 + ... + 103064524.

It is an arithmetic number, because the mean of its divisors is an integer number (4190202708300).

Almost surely, 2^{40545205220425} is an apocalyptic number.

It is an amenable number.

40545205220425 is a deficient number, since it is larger than the sum of its proper divisors (9737227279175).

40545205220425 is a wasteful number, since it uses less digits than its factorization.

40545205220425 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 205742792 (or 205742787 counting only the distinct ones).

The product of its (nonzero) digits is 640000, while the sum is 40.

Adding to 40545205220425 its reverse (52402250254504), we get a palindrome (92947455474929).

The spelling of 40545205220425 in words is "forty trillion, five hundred forty-five billion, two hundred five million, two hundred twenty thousand, four hundred twenty-five".