61023533 has 4 divisors (see below), whose sum is σ = 61934400. Its totient is φ = 60112668.

The previous prime is 61023517. The next prime is 61023551. The reversal of 61023533 is 33532016.

61023533 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

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 61023533 - 2⁴ = 61023517 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 61023499 and 61023508.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (61023553) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 455333 + ... + 455466.

It is an arithmetic number, because the mean of its divisors is an integer number (15483600).

Almost surely, 2^61023533 is an apocalyptic number.

It is an amenable number.

61023533 is a deficient number, since it is larger than the sum of its proper divisors (910867).

61023533 is an equidigital number, since it uses as much as digits as its factorization.

61023533 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 910866.

The product of its (nonzero) digits is 1620, while the sum is 23.

The square root of 61023533 is about 7811.7560765810. The cubic root of 61023533 is about 393.7003334348.

Adding to 61023533 its reverse (33532016), we get a palindrome (94555549).

The spelling of 61023533 in words is "sixty-one million, twenty-three thousand, five hundred thirty-three".