63061655 has 4 divisors (see below), whose sum is σ = 75673992. Its totient is φ = 50449320.

The previous prime is 63061651. The next prime is 63061681. The reversal of 63061655 is 55616036.

It is a semiprime because it is the product of two primes.

It is not a de Polignac number, because 63061655 - 2² = 63061651 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (63061651) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 6306161 + ... + 6306170.

It is an arithmetic number, because the mean of its divisors is an integer number (18918498).

Almost surely, 2^63061655 is an apocalyptic number.

63061655 is a deficient number, since it is larger than the sum of its proper divisors (12612337).

63061655 is a wasteful number, since it uses less digits than its factorization.

63061655 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 12612336.

The product of its (nonzero) digits is 16200, while the sum is 32.

The square root of 63061655 is about 7941.1368833436. The cubic root of 63061655 is about 398.0354820517.

The spelling of 63061655 in words is "sixty-three million, sixty-one thousand, six hundred fifty-five".