61225331 has 2 divisors, whose sum is σ = 61225332. Its totient is φ = 61225330.

The previous prime is 61225289. The next prime is 61225357. The reversal of 61225331 is 13352216.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 61225331 - 2⁶ = 61225267 is a prime.

It is a super-2 number, since 2×61225331² = 7497082312119122, which contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 61225297 and 61225306.

It is not a weakly prime, because it can be changed into another prime (61225361) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 30612665 + 30612666.

It is an arithmetic number, because the mean of its divisors is an integer number (30612666).

Almost surely, 2^61225331 is an apocalyptic number.

61225331 is a deficient number, since it is larger than the sum of its proper divisors (1).

61225331 is an equidigital number, since it uses as much as digits as its factorization.

61225331 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 1080, while the sum is 23.

The square root of 61225331 is about 7824.6617179275. The cubic root of 61225331 is about 394.1338302699.

Adding to 61225331 its reverse (13352216), we get a palindrome (74577547).

The spelling of 61225331 in words is "sixty-one million, two hundred twenty-five thousand, three hundred thirty-one".