61630755 has 8 divisors (see below), whose sum is σ = 98609232. Its totient is φ = 32869728.

The previous prime is 61630741. The next prime is 61630781. The reversal of 61630755 is 55703616.

61630755 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 61630755 - 2¹⁰ = 61629731 is a prime.

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 7 ways as a sum of consecutive naturals, for example, 2054344 + ... + 2054373.

It is an arithmetic number, because the mean of its divisors is an integer number (12326154).

Almost surely, 2^61630755 is an apocalyptic number.

61630755 is a deficient number, since it is larger than the sum of its proper divisors (36978477).

61630755 is a wasteful number, since it uses less digits than its factorization.

61630755 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4108725.

The product of its (nonzero) digits is 18900, while the sum is 33.

The square root of 61630755 is about 7850.5257785705. The cubic root of 61630755 is about 395.0018800316.

The spelling of 61630755 in words is "sixty-one million, six hundred thirty thousand, seven hundred fifty-five".