61550330 has 8 divisors (see below), whose sum is σ = 110790612. Its totient is φ = 24620128.

The previous prime is 61550327. The next prime is 61550341. The reversal of 61550330 is 3305516.

It can be written as a sum of positive squares in 2 ways, for example, as 58629649 + 2920681 = 7657^2 + 1709^2 .

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

It is a junction number, because it is equal to n+sod(n) for n = 61550296 and 61550305.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 3077507 + ... + 3077526.

Almost surely, 2^61550330 is an apocalyptic number.

61550330 is a deficient number, since it is larger than the sum of its proper divisors (49240282).

61550330 is a wasteful number, since it uses less digits than its factorization.

61550330 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 6155040.

The product of its (nonzero) digits is 1350, while the sum is 23.

The square root of 61550330 is about 7845.4018380195. The cubic root of 61550330 is about 394.8299861194.

Adding to 61550330 its reverse (3305516), we get a palindrome (64855846).

The spelling of 61550330 in words is "sixty-one million, five hundred fifty thousand, three hundred thirty".