40635320025 has 48 divisors (see below), whose sum is σ = 70066293248. Its totient is φ = 20756736000.

The previous prime is 40635319951. The next prime is 40635320051. The reversal of 40635320025 is 52002353604.

It is not a de Polignac number, because 40635320025 - 2²¹ = 40633222873 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 40635319974 and 40635320001.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 135435 + ... + 315615.

Almost surely, 2^40635320025 is an apocalyptic number.

It is an amenable number.

40635320025 is a deficient number, since it is larger than the sum of its proper divisors (29430973223).

40635320025 is a wasteful number, since it uses less digits than its factorization.

40635320025 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 180322 (or 180317 counting only the distinct ones).

The product of its (nonzero) digits is 21600, while the sum is 30.

Adding to 40635320025 its reverse (52002353604), we get a palindrome (92637673629).

The spelling of 40635320025 in words is "forty billion, six hundred thirty-five million, three hundred twenty thousand, twenty-five".