61225223 has 2 divisors, whose sum is σ = 61225224. Its totient is φ = 61225222.

The previous prime is 61225189. The next prime is 61225243. The reversal of 61225223 is 32252216.

61225223 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 61225223 - 2⁶ = 61225159 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (61225243) 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 as a sum of consecutive naturals, namely, 30612611 + 30612612.

It is an arithmetic number, because the mean of its divisors is an integer number (30612612).

Almost surely, 2^61225223 is an apocalyptic number.

61225223 is a deficient number, since it is larger than the sum of its proper divisors (1).

61225223 is an equidigital number, since it uses as much as digits as its factorization.

61225223 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 1440, while the sum is 23.

The square root of 61225223 is about 7824.6548166676. The cubic root of 61225223 is about 394.1335985223.

Adding to 61225223 its reverse (32252216), we get a palindrome (93477439).

The spelling of 61225223 in words is "sixty-one million, two hundred twenty-five thousand, two hundred twenty-three".