61082855 has 16 divisors (see below), whose sum is σ = 74390400. Its totient is φ = 48145440.

The previous prime is 61082849. The next prime is 61082863. The reversal of 61082855 is 55828016.

It is a happy number.

61082855 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is not a de Polignac number, because 61082855 - 2⁴ = 61082839 is a prime.

It is a super-4 number, since 4×61082855⁴ (a number of 32 digits) contains 4444 as substring. Note that it is a super-d number also for d = 2.

It is a congruent number.

It is an unprimeable number.

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, 124160 + ... + 124650.

It is an arithmetic number, because the mean of its divisors is an integer number (4649400).

Almost surely, 2^61082855 is an apocalyptic number.

61082855 is a deficient number, since it is larger than the sum of its proper divisors (13307545).

61082855 is a wasteful number, since it uses less digits than its factorization.

61082855 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 814.

The product of its (nonzero) digits is 19200, while the sum is 35.

The square root of 61082855 is about 7815.5521238106. The cubic root of 61082855 is about 393.8278663507.

The spelling of 61082855 in words is "sixty-one million, eighty-two thousand, eight hundred fifty-five".