427470525 has 144 divisors (see below), whose sum is σ = 873265536. Its totient is φ = 198696960.

The previous prime is 427470523. The next prime is 427470529. The reversal of 427470525 is 525074724.

It is a happy number.

It is not a de Polignac number, because 427470525 - 2¹ = 427470523 is a prime.

It is a Curzon number.

It is a self number, because there is not a number n which added to its sum of digits gives 427470525.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (427470523) by changing a digit.

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 143 ways as a sum of consecutive naturals, for example, 3782869 + ... + 3782981.

It is an arithmetic number, because the mean of its divisors is an integer number (6064344).

Almost surely, 2^427470525 is an apocalyptic number.

427470525 is a gapful number since it is divisible by the number (45) formed by its first and last digit.

It is an amenable number.

427470525 is an abundant number, since it is smaller than the sum of its proper divisors (445795011).

427470525 is a wasteful number, since it uses less digits than its factorization.

427470525 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 212 (or 204 counting only the distinct ones).

The product of its (nonzero) digits is 78400, while the sum is 36.

The square root of 427470525 is about 20675.3603354331. The cubic root of 427470525 is about 753.3013137816.

The spelling of 427470525 in words is "four hundred twenty-seven million, four hundred seventy thousand, five hundred twenty-five".