40520554313 has 8 divisors (see below), whose sum is σ = 42284332800. Its totient is φ = 38756943808.

The previous prime is 40520554279. The next prime is 40520554409. The reversal of 40520554313 is 31345502504.

It is a happy number.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 40520554313 - 2²⁰ = 40519505737 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 40520554313.

It is not an unprimeable number, because it can be changed into a prime (40520554513) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 922433 + ... + 965361.

It is an arithmetic number, because the mean of its divisors is an integer number (5285541600).

Almost surely, 2^40520554313 is an apocalyptic number.

It is an amenable number.

40520554313 is a deficient number, since it is larger than the sum of its proper divisors (1763778487).

40520554313 is a wasteful number, since it uses less digits than its factorization.

40520554313 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 83991.

The product of its (nonzero) digits is 36000, while the sum is 32.

The spelling of 40520554313 in words is "forty billion, five hundred twenty million, five hundred fifty-four thousand, three hundred thirteen".