40525545040 has 20 divisors (see below), whose sum is σ = 94221892404. Its totient is φ = 16210217984.

The previous prime is 40525545029. The next prime is 40525545041. The reversal of 40525545040 is 4054552504.

40525545040 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It can be written as a sum of positive squares in 2 ways, for example, as 11098201104 + 29427343936 = 105348^2 + 171544^2 .

It is a tau number, because it is divible by the number of its divisors (20).

It is a junction number, because it is equal to n+sod(n) for n = 40525544987 and 40525545005.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (40525545041) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 253284577 + ... + 253284736.

Almost surely, 2^40525545040 is an apocalyptic number.

40525545040 is a gapful number since it is divisible by the number (40) formed by its first and last digit.

It is an amenable number.

40525545040 is an abundant number, since it is smaller than the sum of its proper divisors (53696347364).

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

40525545040 is a wasteful number, since it uses less digits than its factorization.

40525545040 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 506569326 (or 506569320 counting only the distinct ones).

The product of its (nonzero) digits is 80000, while the sum is 34.

The spelling of 40525545040 in words is "forty billion, five hundred twenty-five million, five hundred forty-five thousand, forty".