52545225 has 48 divisors (see below), whose sum is σ = 91994112. Its totient is φ = 26410560.

The previous prime is 52545221. The next prime is 52545247. The reversal of 52545225 is 52254525.

It is not a de Polignac number, because 52545225 - 2² = 52545221 is a prime.

It is a super-2 number, since 2×52545225² = 5522001340601250, which contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 52545192 and 52545201.

It is not an unprimeable number, because it can be changed into a prime (52545221) by changing a digit.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 142992 + ... + 143358.

It is an arithmetic number, because the mean of its divisors is an integer number (1916544).

Almost surely, 2^52545225 is an apocalyptic number.

It is an amenable number.

52545225 is a deficient number, since it is larger than the sum of its proper divisors (39448887).

52545225 is a wasteful number, since it uses less digits than its factorization.

52545225 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 486 (or 481 counting only the distinct ones).

The product of its digits is 20000, while the sum is 30.

The square root of 52545225 is about 7248.8085227850. The cubic root of 52545225 is about 374.5511073131.

The spelling of 52545225 in words is "fifty-two million, five hundred forty-five thousand, two hundred twenty-five".