61061055 has 16 divisors (see below), whose sum is σ = 106579584. Its totient is φ = 29605280.

The previous prime is 61061051. The next prime is 61061057. The reversal of 61061055 is 55016016.

It is not a de Polignac number, because 61061055 - 2² = 61061051 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (61061051) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 184869 + ... + 185198.

It is an arithmetic number, because the mean of its divisors is an integer number (6661224).

Almost surely, 2^61061055 is an apocalyptic number.

61061055 is a deficient number, since it is larger than the sum of its proper divisors (45518529).

61061055 is a wasteful number, since it uses less digits than its factorization.

61061055 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 370086.

The product of its (nonzero) digits is 900, while the sum is 24.

The square root of 61061055 is about 7814.1573442055. The cubic root of 61061055 is about 393.7810093996.

The spelling of 61061055 in words is "sixty-one million, sixty-one thousand, fifty-five".