42223542525 has 72 divisors (see below), whose sum is σ = 80349801480. Its totient is φ = 21154936320.

The previous prime is 42223542523. The next prime is 42223542533. The reversal of 42223542525 is 52524532224.

42223542525 is a `hidden beast` number, since 4 + 2 + 223 + 5 + 425 + 2 + 5 = 666.

42223542525 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It can be written as a sum of positive squares in 12 ways, for example, as 187881849 + 42035660676 = 13707^2 + 205026^2 .

It is not a de Polignac number, because 42223542525 - 2¹ = 42223542523 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 42223542525.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (42223542523) by changing a digit.

It is a polite number, since it can be written in 71 ways as a sum of consecutive naturals, for example, 153979 + ... + 328871.

It is an arithmetic number, because the mean of its divisors is an integer number (1115969465).

Almost surely, 2^42223542525 is an apocalyptic number.

42223542525 is a gapful number since it is divisible by the number (45) formed by its first and last digit.

It is an amenable number.

42223542525 is a deficient number, since it is larger than the sum of its proper divisors (38126258955).

42223542525 is a wasteful number, since it uses less digits than its factorization.

42223542525 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 174975 (or 174967 counting only the distinct ones).

The product of its digits is 192000, while the sum is 36.

The spelling of 42223542525 in words is "forty-two billion, two hundred twenty-three million, five hundred forty-two thousand, five hundred twenty-five".