52187225 has 6 divisors (see below), whose sum is σ = 64712190. Its totient is φ = 41749760.

The previous prime is 52187183. The next prime is 52187227. The reversal of 52187225 is 52278125.

It is a happy number.

It can be written as a sum of positive squares in 3 ways, for example, as 9467929 + 42719296 = 3077^2 + 6536^2 .

It is not a de Polignac number, because 52187225 - 2⁸ = 52186969 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 52187191 and 52187200.

It is not an unprimeable number, because it can be changed into a prime (52187227) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 1043720 + ... + 1043769.

It is an arithmetic number, because the mean of its divisors is an integer number (10785365).

Almost surely, 2^52187225 is an apocalyptic number.

It is an amenable number.

52187225 is a deficient number, since it is larger than the sum of its proper divisors (12524965).

52187225 is a wasteful number, since it uses less digits than its factorization.

52187225 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2087499 (or 2087494 counting only the distinct ones).

The product of its digits is 11200, while the sum is 32.

The square root of 52187225 is about 7224.0726048400. The cubic root of 52187225 is about 373.6985402841.

The spelling of 52187225 in words is "fifty-two million, one hundred eighty-seven thousand, two hundred twenty-five".