61120225 has 6 divisors (see below), whose sum is σ = 75789110. Its totient is φ = 48896160.

The previous prime is 61120181. The next prime is 61120229. The reversal of 61120225 is 52202116.

It can be written as a sum of positive squares in 3 ways, for example, as 389376 + 60730849 = 624^2 + 7793^2 .

It is not a de Polignac number, because 61120225 - 2¹¹ = 61118177 is a prime.

It is not an unprimeable number, because it can be changed into a prime (61120229) by changing a digit.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 1222380 + ... + 1222429.

Almost surely, 2^61120225 is an apocalyptic number.

It is an amenable number.

61120225 is a deficient number, since it is larger than the sum of its proper divisors (14668885).

61120225 is a wasteful number, since it uses less digits than its factorization.

61120225 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2444819 (or 2444814 counting only the distinct ones).

The product of its (nonzero) digits is 240, while the sum is 19.

The square root of 61120225 is about 7817.9425042654. The cubic root of 61120225 is about 393.9081635528.

The spelling of 61120225 in words is "sixty-one million, one hundred twenty thousand, two hundred twenty-five".