40510100505 has 24 divisors (see below), whose sum is σ = 75398392512. Its totient is φ = 18518902752.

The previous prime is 40510100503. The next prime is 40510100531. The reversal of 40510100505 is 50500101504.

It is not a de Polignac number, because 40510100505 - 2¹ = 40510100503 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (21).

It is not an unprimeable number, because it can be changed into a prime (40510100503) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 27557157 + ... + 27558626.

It is an arithmetic number, because the mean of its divisors is an integer number (3141599688).

Almost surely, 2^40510100505 is an apocalyptic number.

It is an amenable number.

40510100505 is a deficient number, since it is larger than the sum of its proper divisors (34888292007).

40510100505 is a wasteful number, since it uses less digits than its factorization.

40510100505 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 55115805 (or 55115798 counting only the distinct ones).

The product of its (nonzero) digits is 500, while the sum is 21.

Subtracting 40510100505 from its reverse (50500101504), we obtain a palindrome (9990000999).

The spelling of 40510100505 in words is "forty billion, five hundred ten million, one hundred thousand, five hundred five".