61103225 has 6 divisors (see below), whose sum is σ = 75768030. Its totient is φ = 48882560.

The previous prime is 61103213. The next prime is 61103257. The reversal of 61103225 is 52230116.

It can be written as a sum of positive squares in 3 ways, for example, as 839056 + 60264169 = 916^2 + 7763^2 .

It is not a de Polignac number, because 61103225 - 2⁴ = 61103209 is a prime.

It is a Curzon number.

It is a junction number, because it is equal to n+sod(n) for n = 61103197 and 61103206.

It is an unprimeable number.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 1222040 + ... + 1222089.

It is an arithmetic number, because the mean of its divisors is an integer number (12628005).

Almost surely, 2^61103225 is an apocalyptic number.

It is an amenable number.

61103225 is a deficient number, since it is larger than the sum of its proper divisors (14664805).

61103225 is a wasteful number, since it uses less digits than its factorization.

61103225 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2444139 (or 2444134 counting only the distinct ones).

The product of its (nonzero) digits is 360, while the sum is 20.

The square root of 61103225 is about 7816.8551860707. The cubic root of 61103225 is about 393.8716395832.

The spelling of 61103225 in words is "sixty-one million, one hundred three thousand, two hundred twenty-five".