56240225 has 6 divisors (see below), whose sum is σ = 69737910. Its totient is φ = 44992160.

The previous prime is 56240207. The next prime is 56240227. The reversal of 56240225 is 52204265.

It can be written as a sum of positive squares in 3 ways, for example, as 11135569 + 45104656 = 3337^2 + 6716^2 .

It is not a de Polignac number, because 56240225 - 2⁶ = 56240161 is a prime.

It is a Curzon number.

It is a junction number, because it is equal to n+sod(n) for n = 56240194 and 56240203.

It is not an unprimeable number, because it can be changed into a prime (56240227) 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, 1124780 + ... + 1124829.

It is an arithmetic number, because the mean of its divisors is an integer number (11622985).

Almost surely, 2^56240225 is an apocalyptic number.

It is an amenable number.

56240225 is a deficient number, since it is larger than the sum of its proper divisors (13497685).

56240225 is a wasteful number, since it uses less digits than its factorization.

56240225 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2249619 (or 2249614 counting only the distinct ones).

The product of its (nonzero) digits is 4800, while the sum is 26.

The square root of 56240225 is about 7499.3483050196. The cubic root of 56240225 is about 383.1325203193.

It can be divided in two parts, 56240 and 225, that added together give a palindrome (56465).

The spelling of 56240225 in words is "fifty-six million, two hundred forty thousand, two hundred twenty-five".