53523225 has 72 divisors (see below), whose sum is σ = 116064000. Its totient is φ = 23016960.

The previous prime is 53523221. The next prime is 53523227. The reversal of 53523225 is 52232535.

It is not a de Polignac number, because 53523225 - 2² = 53523221 is a prime.

It is a super-2 number, since 2×53523225² = 5729471228801250, which contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (53523221) 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, 25776 + ... + 27774.

It is an arithmetic number, because the mean of its divisors is an integer number (1612000).

Almost surely, 2^53523225 is an apocalyptic number.

It is an amenable number.

53523225 is an abundant number, since it is smaller than the sum of its proper divisors (62540775).

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

53523225 is a wasteful number, since it uses less digits than its factorization.

53523225 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2039 (or 2031 counting only the distinct ones).

The product of its digits is 9000, while the sum is 27.

The square root of 53523225 is about 7315.9568752146. The cubic root of 53523225 is about 376.8606196505.

The spelling of 53523225 in words is "fifty-three million, five hundred twenty-three thousand, two hundred twenty-five".