40545550 has 24 divisors (see below), whose sum is σ = 78695856. Its totient is φ = 15512640.

The previous prime is 40545523. The next prime is 40545559. The reversal of 40545550 is 5554504.

40545550 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (40545559) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 16479 + ... + 18778.

It is an arithmetic number, because the mean of its divisors is an integer number (3278994).

Almost surely, 2^40545550 is an apocalyptic number.

40545550 is a deficient number, since it is larger than the sum of its proper divisors (38150306).

40545550 is a wasteful number, since it uses less digits than its factorization.

40545550 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 35292 (or 35287 counting only the distinct ones).

The product of its (nonzero) digits is 10000, while the sum is 28.

The square root of 40545550 is about 6367.5387709852. The cubic root of 40545550 is about 343.5429695516.

It can be divided in two parts, 4054 and 5550, that added together give a square (9604 = 98²).

The spelling of 40545550 in words is "forty million, five hundred forty-five thousand, five hundred fifty".