61530226 has 16 divisors (see below), whose sum is σ = 95816448. Its totient is φ = 29602800.

The previous prime is 61530197. The next prime is 61530241. The reversal of 61530226 is 62203516.

61530226 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a super-2 number, since 2×61530226² = 7571937423222152, which contains 22 as substring.

It is a self number, because there is not a number n which added to its sum of digits gives 61530226.

It is an unprimeable number.

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, 8481 + ... + 13963.

It is an arithmetic number, because the mean of its divisors is an integer number (5988528).

Almost surely, 2^61530226 is an apocalyptic number.

61530226 is a deficient number, since it is larger than the sum of its proper divisors (34286222).

61530226 is a wasteful number, since it uses less digits than its factorization.

61530226 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5697.

The product of its (nonzero) digits is 2160, while the sum is 25.

The square root of 61530226 is about 7844.1204733227. The cubic root of 61530226 is about 394.7869940595.

The spelling of 61530226 in words is "sixty-one million, five hundred thirty thousand, two hundred twenty-six".