61133355 has 48 divisors (see below), whose sum is σ = 112619520. Its totient is φ = 30590784.

The previous prime is 61133353. The next prime is 61133389. The reversal of 61133355 is 55333116.

61133355 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is not a de Polignac number, because 61133355 - 2¹ = 61133353 is a prime.

It is not an unprimeable number, because it can be changed into a prime (61133351) 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 47 ways as a sum of consecutive naturals, for example, 108304 + ... + 108866.

It is an arithmetic number, because the mean of its divisors is an integer number (2346240).

Almost surely, 2^61133355 is an apocalyptic number.

61133355 is a deficient number, since it is larger than the sum of its proper divisors (51486165).

61133355 is a wasteful number, since it uses less digits than its factorization.

61133355 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 720 (or 717 counting only the distinct ones).

The product of its digits is 4050, while the sum is 27.

The square root of 61133355 is about 7818.7821941783. The cubic root of 61133355 is about 393.9363683131.

The spelling of 61133355 in words is "sixty-one million, one hundred thirty-three thousand, three hundred fifty-five".