42055250421 has 32 divisors (see below), whose sum is σ = 58425269760. Its totient is φ = 26875666944.

The previous prime is 42055250417. The next prime is 42055250459. The reversal of 42055250421 is 12405255024.

42055250421 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is not a de Polignac number, because 42055250421 - 2² = 42055250417 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (42055250401) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 7436631 + ... + 7442283.

It is an arithmetic number, because the mean of its divisors is an integer number (1825789680).

Almost surely, 2^42055250421 is an apocalyptic number.

It is an amenable number.

42055250421 is a deficient number, since it is larger than the sum of its proper divisors (16370019339).

42055250421 is a wasteful number, since it uses less digits than its factorization.

42055250421 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 6285.

The product of its (nonzero) digits is 16000, while the sum is 30.

The spelling of 42055250421 in words is "forty-two billion, fifty-five million, two hundred fifty thousand, four hundred twenty-one".