61650533 has 4 divisors (see below), whose sum is σ = 70457760. Its totient is φ = 52843308.

The previous prime is 61650529. The next prime is 61650539. The reversal of 61650533 is 33505616.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is not a de Polignac number, because 61650533 - 2² = 61650529 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 61650496 and 61650505.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (61650539) 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, 4403603 + ... + 4403616.

It is an arithmetic number, because the mean of its divisors is an integer number (17614440).

Almost surely, 2^61650533 is an apocalyptic number.

It is an amenable number.

61650533 is a deficient number, since it is larger than the sum of its proper divisors (8807227).

61650533 is an equidigital number, since it uses as much as digits as its factorization.

61650533 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 8807226.

The product of its (nonzero) digits is 8100, while the sum is 29.

The square root of 61650533 is about 7851.7853383801. The cubic root of 61650533 is about 395.0441290227.

The spelling of 61650533 in words is "sixty-one million, six hundred fifty thousand, five hundred thirty-three".