40455125550 has 288 divisors, whose sum is σ = 129575706624. Its totient is φ = 8854272000.

The previous prime is 40455125531. The next prime is 40455125609. The reversal of 40455125550 is 5552155404.

40455125550 is a `hidden beast` number, since 4 + 0 + 4 + 551 + 2 + 55 + 50 = 666.

It is a Curzon number.

It is a congruent number.

It is an unprimeable number.

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 143 ways as a sum of consecutive naturals, for example, 9469915 + ... + 9474185.

It is an arithmetic number, because the mean of its divisors is an integer number (449915648).

Almost surely, 2^40455125550 is an apocalyptic number.

It is a practical number, because each smaller number is the sum of distinct divisors of 40455125550, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (64787853312).

40455125550 is an abundant number, since it is smaller than the sum of its proper divisors (89120581074).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

40455125550 is a wasteful number, since it uses less digits than its factorization.

40455125550 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4424 (or 4416 counting only the distinct ones).

The product of its (nonzero) digits is 100000, while the sum is 36.

The spelling of 40455125550 in words is "forty billion, four hundred fifty-five million, one hundred twenty-five thousand, five hundred fifty".