40523305051 has 4 divisors (see below), whose sum is σ = 42656110600. Its totient is φ = 38390499504.

The previous prime is 40523305037. The next prime is 40523305079. The reversal of 40523305051 is 15050332504.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 40523305051 - 2²⁵ = 40489750619 is a prime.

It is a super-2 number, since 2×40523305051² (a number of 22 digits) contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (40523305001) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1066402746 + ... + 1066402783.

It is an arithmetic number, because the mean of its divisors is an integer number (10664027650).

Almost surely, 2^40523305051 is an apocalyptic number.

40523305051 is a deficient number, since it is larger than the sum of its proper divisors (2132805549).

40523305051 is a wasteful number, since it uses less digits than its factorization.

40523305051 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2132805548.

The product of its (nonzero) digits is 9000, while the sum is 28.

Adding to 40523305051 its reverse (15050332504), we get a palindrome (55573637555).

The spelling of 40523305051 in words is "forty billion, five hundred twenty-three million, three hundred five thousand, fifty-one".