42505455020 has 24 divisors (see below), whose sum is σ = 102013092384. Its totient is φ = 14573298816.

The previous prime is 42505455017. The next prime is 42505455029. The reversal of 42505455020 is 2055450524.

42505455020 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is not an unprimeable number, because it can be changed into a prime (42505455029) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 151805057 + ... + 151805336.

It is an arithmetic number, because the mean of its divisors is an integer number (4250545516).

Almost surely, 2^42505455020 is an apocalyptic number.

It is an amenable number.

42505455020 is an abundant number, since it is smaller than the sum of its proper divisors (59507637364).

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

42505455020 is a wasteful number, since it uses less digits than its factorization.

42505455020 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 303610409 (or 303610407 counting only the distinct ones).

The product of its (nonzero) digits is 40000, while the sum is 32.

The spelling of 42505455020 in words is "forty-two billion, five hundred five million, four hundred fifty-five thousand, twenty".