61561483 has 2 divisors, whose sum is σ = 61561484. Its totient is φ = 61561482.

The previous prime is 61561481. The next prime is 61561529. The reversal of 61561483 is 38416516.

It is a happy number.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 61561483 - 2¹ = 61561481 is a prime.

Together with 61561481, it forms a pair of twin primes.

It is not a weakly prime, because it can be changed into another prime (61561481) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 30780741 + 30780742.

It is an arithmetic number, because the mean of its divisors is an integer number (30780742).

Almost surely, 2^61561483 is an apocalyptic number.

61561483 is a deficient number, since it is larger than the sum of its proper divisors (1).

61561483 is an equidigital number, since it uses as much as digits as its factorization.

61561483 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 17280, while the sum is 34.

The square root of 61561483 is about 7846.1126043411. The cubic root of 61561483 is about 394.8538325817.

Adding to 61561483 its reverse (38416516), we get a palindrome (99977999).

The spelling of 61561483 in words is "sixty-one million, five hundred sixty-one thousand, four hundred eighty-three".