61320433 has 16 divisors (see below), whose sum is σ = 64884240. Its totient is φ = 57888000.

The previous prime is 61320421. The next prime is 61320443. The reversal of 61320433 is 33402316.

It can be written as a sum of positive squares in 8 ways, for example, as 121104 + 61199329 = 348^2 + 7823^2 .

It is a cyclic number.

It is not a de Polignac number, because 61320433 - 2⁵ = 61320401 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (61320403) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 227823 + ... + 228091.

It is an arithmetic number, because the mean of its divisors is an integer number (4055265).

Almost surely, 2^61320433 is an apocalyptic number.

It is an amenable number.

61320433 is a deficient number, since it is larger than the sum of its proper divisors (3563807).

61320433 is a wasteful number, since it uses less digits than its factorization.

61320433 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 468.

The product of its (nonzero) digits is 1296, while the sum is 22.

The square root of 61320433 is about 7830.7364276931. The cubic root of 61320433 is about 394.3377955465.

Adding to 61320433 its reverse (33402316), we get a palindrome (94722749).

The spelling of 61320433 in words is "sixty-one million, three hundred twenty thousand, four hundred thirty-three".