61355393 has 8 divisors (see below), whose sum is σ = 68566176. Its totient is φ = 54416800.

The previous prime is 61355381. The next prime is 61355423. The reversal of 61355393 is 39355316.

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

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-61355393 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (61355303) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 67571 + ... + 68472.

It is an arithmetic number, because the mean of its divisors is an integer number (8570772).

Almost surely, 2^61355393 is an apocalyptic number.

It is an amenable number.

61355393 is a deficient number, since it is larger than the sum of its proper divisors (7210783).

61355393 is a wasteful number, since it uses less digits than its factorization.

61355393 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 136095.

The product of its digits is 36450, while the sum is 35.

The square root of 61355393 is about 7832.9683390143. The cubic root of 61355393 is about 394.4127212528.

The spelling of 61355393 in words is "sixty-one million, three hundred fifty-five thousand, three hundred ninety-three".