61518059 has 2 divisors, whose sum is σ = 61518060. Its totient is φ = 61518058.

The previous prime is 61517983. The next prime is 61518071. The reversal of 61518059 is 95081516.

It is a strong prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-61518059 is a prime.

It is not a weakly prime, because it can be changed into another prime (61518559) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 30759029 + 30759030.

It is an arithmetic number, because the mean of its divisors is an integer number (30759030).

Almost surely, 2^61518059 is an apocalyptic number.

61518059 is a deficient number, since it is larger than the sum of its proper divisors (1).

61518059 is an equidigital number, since it uses as much as digits as its factorization.

61518059 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 10800, while the sum is 35.

The square root of 61518059 is about 7843.3448859527. The cubic root of 61518059 is about 394.7609705894.

The spelling of 61518059 in words is "sixty-one million, five hundred eighteen thousand, fifty-nine".