40055505555 has 32 divisors (see below), whose sum is σ = 70623818496. Its totient is φ = 19261033344.

The previous prime is 40055505551. The next prime is 40055505571. The reversal of 40055505555 is 55550555004.

40055505555 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is not a de Polignac number, because 40055505555 - 2² = 40055505551 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (39).

It is not an unprimeable number, because it can be changed into a prime (40055505551) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 2380137 + ... + 2396906.

It is an arithmetic number, because the mean of its divisors is an integer number (2206994328).

Almost surely, 2^40055505555 is an apocalyptic number.

40055505555 is a deficient number, since it is larger than the sum of its proper divisors (30568312941).

40055505555 is a wasteful number, since it uses less digits than its factorization.

40055505555 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4777107.

The product of its (nonzero) digits is 312500, while the sum is 39.

The spelling of 40055505555 in words is "forty billion, fifty-five million, five hundred five thousand, five hundred fifty-five".