61888459 has 2 divisors, whose sum is σ = 61888460. Its totient is φ = 61888458.

The previous prime is 61888441. The next prime is 61888513. The reversal of 61888459 is 95488816.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 61888459 - 2¹¹ = 61886411 is a prime.

It is not a weakly prime, because it can be changed into another prime (61888759) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 30944229 + 30944230.

It is an arithmetic number, because the mean of its divisors is an integer number (30944230).

Almost surely, 2^61888459 is an apocalyptic number.

61888459 is a deficient number, since it is larger than the sum of its proper divisors (1).

61888459 is an equidigital number, since it uses as much as digits as its factorization.

61888459 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 552960, while the sum is 49.

The square root of 61888459 is about 7866.9218249580. The cubic root of 61888459 is about 395.5516705416.

The spelling of 61888459 in words is "sixty-one million, eight hundred eighty-eight thousand, four hundred fifty-nine".