40520513421550 has 24 divisors (see below), whose sum is σ = 76035129797376. Its totient is φ = 16064769920640.

The previous prime is 40520513421503. The next prime is 40520513421571. The reversal of 40520513421550 is 5512431502504.

40520513421550 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 an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 3585880494 + ... + 3585891793.

It is an arithmetic number, because the mean of its divisors is an integer number (3168130408224).

Almost surely, 2^{40520513421550} is an apocalyptic number.

40520513421550 is a deficient number, since it is larger than the sum of its proper divisors (35514616375826).

40520513421550 is a wasteful number, since it uses less digits than its factorization.

40520513421550 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 7171772412 (or 7171772407 counting only the distinct ones).

The product of its (nonzero) digits is 120000, while the sum is 37.

The spelling of 40520513421550 in words is "forty trillion, five hundred twenty billion, five hundred thirteen million, four hundred twenty-one thousand, five hundred fifty".