63427155 has 16 divisors (see below), whose sum is σ = 110709504. Its totient is φ = 30752480.

The previous prime is 63427151. The next prime is 63427157. The reversal of 63427155 is 55172436.

It is not a de Polignac number, because 63427155 - 2² = 63427151 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (33).

It is not an unprimeable number, because it can be changed into a prime (63427151) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 192039 + ... + 192368.

It is an arithmetic number, because the mean of its divisors is an integer number (6919344).

Almost surely, 2^63427155 is an apocalyptic number.

63427155 is a deficient number, since it is larger than the sum of its proper divisors (47282349).

63427155 is a wasteful number, since it uses less digits than its factorization.

63427155 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 384426.

The product of its digits is 25200, while the sum is 33.

The square root of 63427155 is about 7964.1167118520. The cubic root of 63427155 is about 398.8029944340.

The spelling of 63427155 in words is "sixty-three million, four hundred twenty-seven thousand, one hundred fifty-five".