42205621250 has 80 divisors (see below), whose sum is σ = 88134381720. Its totient is φ = 15046080000.

The previous prime is 42205621231. The next prime is 42205621261. The reversal of 42205621250 is 5212650224.

It can be written as a sum of positive squares in 20 ways, for example, as 30317426161 + 11888195089 = 174119^2 + 109033^2 .

It is a Harshad number since it is a multiple of its sum of digits (29).

It is an unprimeable number.

It is a polite number, since it can be written in 39 ways as a sum of consecutive naturals, for example, 426470 + ... + 516030.

Almost surely, 2^42205621250 is an apocalyptic number.

42205621250 is an abundant number, since it is smaller than the sum of its proper divisors (45928760470).

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

42205621250 is a wasteful number, since it uses less digits than its factorization.

42205621250 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 89625 (or 89610 counting only the distinct ones).

The product of its (nonzero) digits is 9600, while the sum is 29.

The spelling of 42205621250 in words is "forty-two billion, two hundred five million, six hundred twenty-one thousand, two hundred fifty".