61605359 has 4 divisors (see below), whose sum is σ = 61686240. Its totient is φ = 61524480.

The previous prime is 61605347. The next prime is 61605371. The reversal of 61605359 is 95350616.

It is a semiprime because it is the product of two primes.

It is an interprime number because it is at equal distance from previous prime (61605347) and next prime (61605371).

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-61605359 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (61605319) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 39287 + ... + 40824.

It is an arithmetic number, because the mean of its divisors is an integer number (15421560).

Almost surely, 2^61605359 is an apocalyptic number.

61605359 is a deficient number, since it is larger than the sum of its proper divisors (80881).

61605359 is an equidigital number, since it uses as much as digits as its factorization.

61605359 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 80880.

The product of its (nonzero) digits is 24300, while the sum is 35.

The square root of 61605359 is about 7848.9081406269. The cubic root of 61605359 is about 394.9476168317.

The spelling of 61605359 in words is "sixty-one million, six hundred five thousand, three hundred fifty-nine".