61353899 has 2 divisors, whose sum is σ = 61353900. Its totient is φ = 61353898.

The previous prime is 61353839. The next prime is 61353961. The reversal of 61353899 is 99835316.

It is a weak prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-61353899 is a prime.

It is a plaindrome in base 15.

It is not a weakly prime, because it can be changed into another prime (61353839) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 30676949 + 30676950.

It is an arithmetic number, because the mean of its divisors is an integer number (30676950).

Almost surely, 2^61353899 is an apocalyptic number.

61353899 is a deficient number, since it is larger than the sum of its proper divisors (1).

61353899 is an equidigital number, since it uses as much as digits as its factorization.

61353899 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 174960, while the sum is 44.

The square root of 61353899 is about 7832.8729722880. The cubic root of 61353899 is about 394.4095199184.

The spelling of 61353899 in words is "sixty-one million, three hundred fifty-three thousand, eight hundred ninety-nine".