52621325 has 6 divisors (see below), whose sum is σ = 65250474. Its totient is φ = 42097040.

The previous prime is 52621321. The next prime is 52621343. The reversal of 52621325 is 52312625.

It can be written as a sum of positive squares in 3 ways, for example, as 1841449 + 50779876 = 1357^2 + 7126^2 .

It is not a de Polignac number, because 52621325 - 2² = 52621321 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 52621294 and 52621303.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (52621321) 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, 1052402 + ... + 1052451.

It is an arithmetic number, because the mean of its divisors is an integer number (10875079).

Almost surely, 2^52621325 is an apocalyptic number.

It is an amenable number.

52621325 is a deficient number, since it is larger than the sum of its proper divisors (12629149).

52621325 is a wasteful number, since it uses less digits than its factorization.

52621325 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2104863 (or 2104858 counting only the distinct ones).

The product of its digits is 3600, while the sum is 26.

The square root of 52621325 is about 7254.0557621237. The cubic root of 52621325 is about 374.7318379129.

The spelling of 52621325 in words is "fifty-two million, six hundred twenty-one thousand, three hundred twenty-five".