40221250555 has 16 divisors (see below), whose sum is σ = 51804719424. Its totient is φ = 29869378560.

The previous prime is 40221250501. The next prime is 40221250561. The reversal of 40221250555 is 55505212204.

It is a happy number.

It is not a de Polignac number, because 40221250555 - 2¹⁵ = 40221217787 is a prime.

It is a Duffinian number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 3234831 + ... + 3247240.

It is an arithmetic number, because the mean of its divisors is an integer number (3237794964).

Almost surely, 2^40221250555 is an apocalyptic number.

40221250555 is a deficient number, since it is larger than the sum of its proper divisors (11583468869).

40221250555 is a wasteful number, since it uses less digits than its factorization.

40221250555 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 6482166.

The product of its (nonzero) digits is 20000, while the sum is 31.

Adding to 40221250555 its reverse (55505212204), we get a palindrome (95726462759).

The spelling of 40221250555 in words is "forty billion, two hundred twenty-one million, two hundred fifty thousand, five hundred fifty-five".