61330003 has 4 divisors (see below), whose sum is σ = 70091440. Its totient is φ = 52568568.

The previous prime is 61329977. The next prime is 61330019. The reversal of 61330003 is 30003316.

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

It is a cyclic number.

It is not a de Polignac number, because 61330003 - 2¹⁷ = 61198931 is a prime.

It is a super-2 number, since 2×61330003² = 7522738535960018, which contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (61330603) 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, 4380708 + ... + 4380721.

It is an arithmetic number, because the mean of its divisors is an integer number (17522860).

Almost surely, 2^61330003 is an apocalyptic number.

61330003 is a deficient number, since it is larger than the sum of its proper divisors (8761437).

61330003 is an equidigital number, since it uses as much as digits as its factorization.

61330003 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 8761436.

The product of its (nonzero) digits is 162, while the sum is 16.

The square root of 61330003 is about 7831.3474574941. The cubic root of 61330003 is about 394.3583086458.

Adding to 61330003 its reverse (30003316), we get a palindrome (91333319).

The spelling of 61330003 in words is "sixty-one million, three hundred thirty thousand, three".