61982055 has 12 divisors (see below), whose sum is σ = 107435640. Its totient is φ = 33057072.

The previous prime is 61982023. The next prime is 61982071. The reversal of 61982055 is 55028916.

It is a happy number.

It is not a de Polignac number, because 61982055 - 2⁵ = 61982023 is a prime.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 688645 + ... + 688734.

It is an arithmetic number, because the mean of its divisors is an integer number (8952970).

Almost surely, 2^61982055 is an apocalyptic number.

61982055 is a deficient number, since it is larger than the sum of its proper divisors (45453585).

61982055 is a wasteful number, since it uses less digits than its factorization.

61982055 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1377390 (or 1377387 counting only the distinct ones).

The product of its (nonzero) digits is 21600, while the sum is 36.

The square root of 61982055 is about 7872.8682829068. The cubic root of 61982055 is about 395.7509721410.

The spelling of 61982055 in words is "sixty-one million, nine hundred eighty-two thousand, fifty-five".