36400225 has 12 divisors (see below), whose sum is σ = 45878140. Its totient is φ = 28641600.

The previous prime is 36400201. The next prime is 36400279. The reversal of 36400225 is 52200463.

It is a happy number.

It can be written as a sum of positive squares in 6 ways, for example, as 3038049 + 33362176 = 1743^2 + 5776^2 .

It is not a de Polignac number, because 36400225 - 2¹⁹ = 35875937 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 36400196 and 36400205.

It is an unprimeable number.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 10410 + ... + 13459.

Almost surely, 2^36400225 is an apocalyptic number.

It is an amenable number.

36400225 is a deficient number, since it is larger than the sum of its proper divisors (9477915).

36400225 is a wasteful number, since it uses less digits than its factorization.

36400225 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 23940 (or 23935 counting only the distinct ones).

The product of its (nonzero) digits is 1440, while the sum is 22.

The square root of 36400225 is about 6033.2598982640. The cubic root of 36400225 is about 331.4118421200.

Adding to 36400225 its reverse (52200463), we get a palindrome (88600688).

The spelling of 36400225 in words is "thirty-six million, four hundred thousand, two hundred twenty-five".