61225005 has 16 divisors (see below), whose sum is σ = 98077824. Its totient is φ = 32614080.

The previous prime is 61225001. The next prime is 61225009. The reversal of 61225005 is 50052216.

61225005 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is an interprime number because it is at equal distance from previous prime (61225001) and next prime (61225009).

It is not a de Polignac number, because 61225005 - 2² = 61225001 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (61225001) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 13992 + ... + 17838.

It is an arithmetic number, because the mean of its divisors is an integer number (6129864).

Almost surely, 2^61225005 is an apocalyptic number.

It is an amenable number.

61225005 is a deficient number, since it is larger than the sum of its proper divisors (36852819).

61225005 is a wasteful number, since it uses less digits than its factorization.

61225005 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4916.

The product of its (nonzero) digits is 600, while the sum is 21.

The square root of 61225005 is about 7824.6408863283. The cubic root of 61225005 is about 394.1331307345.

The spelling of 61225005 in words is "sixty-one million, two hundred twenty-five thousand, five".