61080049 has 4 divisors (see below), whose sum is σ = 61916836. Its totient is φ = 60243264.

The previous prime is 61080043. The next prime is 61080067. The reversal of 61080049 is 94008016.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 16257024 + 44823025 = 4032^2 + 6695^2 .

It is a cyclic number.

It is not a de Polignac number, because 61080049 - 2¹¹ = 61078001 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 61079999 and 61080026.

It is not an unprimeable number, because it can be changed into a prime (61080043) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 418284 + ... + 418429.

It is an arithmetic number, because the mean of its divisors is an integer number (15479209).

Almost surely, 2^61080049 is an apocalyptic number.

It is an amenable number.

61080049 is a deficient number, since it is larger than the sum of its proper divisors (836787).

61080049 is an equidigital number, since it uses as much as digits as its factorization.

61080049 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 836786.

The product of its (nonzero) digits is 1728, while the sum is 28.

The square root of 61080049 is about 7815.3726078799. The cubic root of 61080049 is about 393.8218357555.

The spelling of 61080049 in words is "sixty-one million, eighty thousand, forty-nine".