61550323 has 8 divisors (see below), whose sum is σ = 64567296. Its totient is φ = 58561800.

The previous prime is 61550311. The next prime is 61550327. The reversal of 61550323 is 32305516.

It is a happy number.

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-61550323 is a prime.

It is a super-2 number, since 2×61550323² = 7576884522808658, which contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (61550327) by changing a digit.

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 7 ways as a sum of consecutive naturals, for example, 2613 + ... + 11398.

It is an arithmetic number, because the mean of its divisors is an integer number (8070912).

Almost surely, 2^61550323 is an apocalyptic number.

61550323 is a deficient number, since it is larger than the sum of its proper divisors (3016973).

61550323 is a wasteful number, since it uses less digits than its factorization.

61550323 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 14225.

The product of its (nonzero) digits is 2700, while the sum is 25.

The square root of 61550323 is about 7845.4013918983. The cubic root of 61550323 is about 394.8299711516.

Adding to 61550323 its reverse (32305516), we get a palindrome (93855839).

The spelling of 61550323 in words is "sixty-one million, five hundred fifty thousand, three hundred twenty-three".