61885651 has 2 divisors, whose sum is σ = 61885652. Its totient is φ = 61885650.

The previous prime is 61885639. The next prime is 61885673. The reversal of 61885651 is 15658816.

61885651 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 61885651 - 2⁵ = 61885619 is a prime.

It is not a weakly prime, because it can be changed into another prime (61885601) 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 as a sum of consecutive naturals, namely, 30942825 + 30942826.

It is an arithmetic number, because the mean of its divisors is an integer number (30942826).

Almost surely, 2^61885651 is an apocalyptic number.

61885651 is a deficient number, since it is larger than the sum of its proper divisors (1).

61885651 is an equidigital number, since it uses as much as digits as its factorization.

61885651 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 57600, while the sum is 40.

The square root of 61885651 is about 7866.7433541460. The cubic root of 61885651 is about 395.5456881344.

The spelling of 61885651 in words is "sixty-one million, eight hundred eighty-five thousand, six hundred fifty-one".