42550250255405 has 32 divisors (see below), whose sum is σ = 53271223931520. Its totient is φ = 32607196876800.

The previous prime is 42550250255377. The next prime is 42550250255413. The reversal of 42550250255405 is 50455205205524.

It is not a de Polignac number, because 42550250255405 - 2¹⁰ = 42550250254381 is a prime.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 10115396 + ... + 13690205.

It is an arithmetic number, because the mean of its divisors is an integer number (1664725747860).

Almost surely, 2^{42550250255405} is an apocalyptic number.

It is an amenable number.

42550250255405 is a deficient number, since it is larger than the sum of its proper divisors (10720973676115).

42550250255405 is a wasteful number, since it uses less digits than its factorization.

42550250255405 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 23805821.

The product of its (nonzero) digits is 2000000, while the sum is 44.

The spelling of 42550250255405 in words is "forty-two trillion, five hundred fifty billion, two hundred fifty million, two hundred fifty-five thousand, four hundred five".