201425504 has 24 divisors (see below), whose sum is σ = 453207888. Its totient is φ = 86325120.

The previous prime is 201425491. The next prime is 201425527. The reversal of 201425504 is 405524102.

It is a happy number.

It is a self number, because there is not a number n which added to its sum of digits gives 201425504.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (7) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 449387 + ... + 449834.

It is an arithmetic number, because the mean of its divisors is an integer number (18883662).

Almost surely, 2^201425504 is an apocalyptic number.

It is an amenable number.

201425504 is an abundant number, since it is smaller than the sum of its proper divisors (251782384).

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

201425504 is an equidigital number, since it uses as much as digits as its factorization.

201425504 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 899238 (or 899230 counting only the distinct ones).

The product of its (nonzero) digits is 1600, while the sum is 23.

The square root of 201425504 is about 14192.4453143213. The cubic root of 201425504 is about 586.1896593212.

Adding to 201425504 its reverse (405524102), we get a palindrome (606949606).

The spelling of 201425504 in words is "two hundred one million, four hundred twenty-five thousand, five hundred four".