40645550253 has 32 divisors (see below), whose sum is σ = 71122775040. Its totient is φ = 20003276160.

The previous prime is 40645550249. The next prime is 40645550261. The reversal of 40645550253 is 35205554604.

It is not a de Polignac number, because 40645550253 - 2² = 40645550249 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (40645550243) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 4626000 + ... + 4634777.

It is an arithmetic number, because the mean of its divisors is an integer number (2222586720).

Almost surely, 2^40645550253 is an apocalyptic number.

It is an amenable number.

40645550253 is a deficient number, since it is larger than the sum of its proper divisors (30477224787).

40645550253 is a wasteful number, since it uses less digits than its factorization.

40645550253 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 9260817.

The product of its (nonzero) digits is 360000, while the sum is 39.

The spelling of 40645550253 in words is "forty billion, six hundred forty-five million, five hundred fifty thousand, two hundred fifty-three".