40520313535 has 32 divisors (see below), whose sum is σ = 56354018112. Its totient is φ = 27700807680.

The previous prime is 40520313517. The next prime is 40520313553. The reversal of 40520313535 is 53531302504.

It is an interprime number because it is at equal distance from previous prime (40520313517) and next prime (40520313553).

It is not a de Polignac number, because 40520313535 - 2¹⁵ = 40520280767 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 40520313497 and 40520313506.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 233169 + ... + 367978.

It is an arithmetic number, because the mean of its divisors is an integer number (1761063066).

Almost surely, 2^40520313535 is an apocalyptic number.

40520313535 is a deficient number, since it is larger than the sum of its proper divisors (15833704577).

40520313535 is a wasteful number, since it uses less digits than its factorization.

40520313535 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 601243.

The product of its (nonzero) digits is 27000, while the sum is 31.

The spelling of 40520313535 in words is "forty billion, five hundred twenty million, three hundred thirteen thousand, five hundred thirty-five".