67650533 has 8 divisors (see below), whose sum is σ = 71691480. Its totient is φ = 63723520.

The previous prime is 67650529. The next prime is 67650551. The reversal of 67650533 is 33505676.

It can be written as a sum of positive squares in 4 ways, for example, as 3378244 + 64272289 = 1838^2 + 8017^2 .

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

It is a cyclic number.

It is not a de Polignac number, because 67650533 - 2² = 67650529 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 67650493 and 67650502.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (67650593) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 27260 + ... + 29637.

It is an arithmetic number, because the mean of its divisors is an integer number (8961435).

Almost surely, 2^67650533 is an apocalyptic number.

It is an amenable number.

67650533 is a deficient number, since it is larger than the sum of its proper divisors (4040947).

67650533 is a wasteful number, since it uses less digits than its factorization.

67650533 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 56967.

The product of its (nonzero) digits is 56700, while the sum is 35.

The square root of 67650533 is about 8224.9944072929. The cubic root of 67650533 is about 407.4650914179.

The spelling of 67650533 in words is "sixty-seven million, six hundred fifty thousand, five hundred thirty-three".