52440325 has 24 divisors (see below), whose sum is σ = 78691392. Its totient is φ = 33841920.

The previous prime is 52440301. The next prime is 52440329. The reversal of 52440325 is 52304425.

It is not a de Polignac number, because 52440325 - 2¹¹ = 52438277 is a prime.

It is a super-2 number, since 2×52440325² = 5499975372211250, which contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (25).

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 52440325.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (52440329) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 5839 + ... + 11788.

It is an arithmetic number, because the mean of its divisors is an integer number (3278808).

Almost surely, 2^52440325 is an apocalyptic number.

It is an amenable number.

52440325 is a deficient number, since it is larger than the sum of its proper divisors (26251067).

52440325 is a wasteful number, since it uses less digits than its factorization.

52440325 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 17661 (or 17656 counting only the distinct ones).

The product of its (nonzero) digits is 4800, while the sum is 25.

The square root of 52440325 is about 7241.5692360151. The cubic root of 52440325 is about 374.3016930461.

The spelling of 52440325 in words is "fifty-two million, four hundred forty thousand, three hundred twenty-five".