52101225 has 60 divisors (see below), whose sum is σ = 105328080. Its totient is φ = 25250400.

The previous prime is 52101193. The next prime is 52101227. The reversal of 52101225 is 52210125.

It is not a de Polignac number, because 52101225 - 2⁵ = 52101193 is a prime.

It is a Curzon number.

It is a junction number, because it is equal to n+sod(n) for n = 52101198 and 52101207.

It is not an unprimeable number, because it can be changed into a prime (52101227) by changing a digit.

It is a polite number, since it can be written in 59 ways as a sum of consecutive naturals, for example, 21106 + ... + 23444.

It is an arithmetic number, because the mean of its divisors is an integer number (1755468).

Almost surely, 2^52101225 is an apocalyptic number.

52101225 is a gapful number since it is divisible by the number (55) formed by its first and last digit.

It is an amenable number.

52101225 is an abundant number, since it is smaller than the sum of its proper divisors (53226855).

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

52101225 is a wasteful number, since it uses less digits than its factorization.

52101225 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2372 (or 2358 counting only the distinct ones).

The product of its (nonzero) digits is 200, while the sum is 18.

The square root of 52101225 is about 7218.1178294622. The cubic root of 52101225 is about 373.4931532107.

Subtracting 52101225 from its reverse (52210125), we obtain a square (108900 = 330²).

It can be divided in two parts, 52101 and 225, that added together give a triangular number (52326 = T₃₂₃).

The spelling of 52101225 in words is "fifty-two million, one hundred one thousand, two hundred twenty-five".