61266533 has 4 divisors (see below), whose sum is σ = 62004768. Its totient is φ = 60528300.

The previous prime is 61266493. The next prime is 61266547. The reversal of 61266533 is 33566216.

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 a cyclic number.

It is not a de Polignac number, because 61266533 - 2²⁰ = 60217957 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 61266533.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (61266433) 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, 368993 + ... + 369158.

It is an arithmetic number, because the mean of its divisors is an integer number (15501192).

Almost surely, 2^61266533 is an apocalyptic number.

It is an amenable number.

61266533 is a deficient number, since it is larger than the sum of its proper divisors (738235).

61266533 is an equidigital number, since it uses as much as digits as its factorization.

61266533 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 738234.

The product of its digits is 19440, while the sum is 32.

The square root of 61266533 is about 7827.2941046060. The cubic root of 61266533 is about 394.2222221192. Note that the first 6 decimals are identical.

The spelling of 61266533 in words is "sixty-one million, two hundred sixty-six thousand, five hundred thirty-three".