61326263 has 4 divisors (see below), whose sum is σ = 61448688. Its totient is φ = 61203840.

The previous prime is 61326253. The next prime is 61326313. The reversal of 61326263 is 36262316.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 61326263 - 2¹² = 61322167 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (61326203) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 60458 + ... + 61463.

It is an arithmetic number, because the mean of its divisors is an integer number (15362172).

Almost surely, 2^61326263 is an apocalyptic number.

61326263 is a deficient number, since it is larger than the sum of its proper divisors (122425).

61326263 is a wasteful number, since it uses less digits than its factorization.

61326263 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 122424.

The product of its digits is 7776, while the sum is 29.

The square root of 61326263 is about 7831.1086699139. The cubic root of 61326263 is about 394.3502922863.

Adding to 61326263 its reverse (36262316), we get a palindrome (97588579).

The spelling of 61326263 in words is "sixty-one million, three hundred twenty-six thousand, two hundred sixty-three".