61055657 has 16 divisors (see below), whose sum is σ = 67710720. Its totient is φ = 54698112.

The previous prime is 61055651. The next prime is 61055671. The reversal of 61055657 is 75655016.

61055657 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a cyclic number.

It is not a de Polignac number, because 61055657 - 2¹⁴ = 61039273 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (61055651) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 133373 + ... + 133829.

It is an arithmetic number, because the mean of its divisors is an integer number (4231920).

Almost surely, 2^61055657 is an apocalyptic number.

It is an amenable number.

61055657 is a deficient number, since it is larger than the sum of its proper divisors (6655063).

61055657 is a wasteful number, since it uses less digits than its factorization.

61055657 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 752.

The product of its (nonzero) digits is 31500, while the sum is 35.

The square root of 61055657 is about 7813.8119378444. The cubic root of 61055657 is about 393.7694052081.

The spelling of 61055657 in words is "sixty-one million, fifty-five thousand, six hundred fifty-seven".