61225285 has 8 divisors (see below), whose sum is σ = 80149536. Its totient is φ = 44527440.

The previous prime is 61225271. The next prime is 61225289. The reversal of 61225285 is 58252216.

61225285 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 61225285 - 2⁵ = 61225253 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (61225289) 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 7 ways as a sum of consecutive naturals, for example, 556539 + ... + 556648.

It is an arithmetic number, because the mean of its divisors is an integer number (10018692).

Almost surely, 2^61225285 is an apocalyptic number.

It is an amenable number.

61225285 is a deficient number, since it is larger than the sum of its proper divisors (18924251).

61225285 is a wasteful number, since it uses less digits than its factorization.

61225285 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1113203.

The product of its digits is 9600, while the sum is 31.

The square root of 61225285 is about 7824.6587785027. The cubic root of 61225285 is about 394.1337315626.

The spelling of 61225285 in words is "sixty-one million, two hundred twenty-five thousand, two hundred eighty-five".