61558067 has 2 divisors, whose sum is σ = 61558068. Its totient is φ = 61558066.

The previous prime is 61558031. The next prime is 61558093. The reversal of 61558067 is 76085516.

It is a happy number.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 61558067 - 2¹⁰ = 61557043 is a prime.

It is a super-2 number, since 2×61558067² = 7578791225552978, which contains 22 as substring.

It is a self number, because there is not a number n which added to its sum of digits gives 61558067.

It is not a weakly prime, because it can be changed into another prime (61558027) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 30779033 + 30779034.

It is an arithmetic number, because the mean of its divisors is an integer number (30779034).

Almost surely, 2^61558067 is an apocalyptic number.

61558067 is a deficient number, since it is larger than the sum of its proper divisors (1).

61558067 is an equidigital number, since it uses as much as digits as its factorization.

61558067 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 50400, while the sum is 38.

The square root of 61558067 is about 7845.8949139024. The cubic root of 61558067 is about 394.8465290668.

The spelling of 61558067 in words is "sixty-one million, five hundred fifty-eight thousand, sixty-seven".