63955480 has 32 divisors (see below), whose sum is σ = 148544640. Its totient is φ = 24756480.

The previous prime is 63955439. The next prime is 63955483. The reversal of 63955480 is 8455936.

It is a Smith number, since the sum of its digits (40) coincides with the sum of the digits of its prime factors.

It is a Harshad number since it is a multiple of its sum of digits (40).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (63955483) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 24549 + ... + 27028.

It is an arithmetic number, because the mean of its divisors is an integer number (4642020).

Almost surely, 2^63955480 is an apocalyptic number.

It is an amenable number.

63955480 is an abundant number, since it is smaller than the sum of its proper divisors (84589160).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

63955480 is a wasteful number, since it uses less digits than its factorization.

63955480 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 51619 (or 51615 counting only the distinct ones).

The product of its (nonzero) digits is 129600, while the sum is 40.

The square root of 63955480 is about 7997.2170159375. The cubic root of 63955480 is about 399.9072284853.

The spelling of 63955480 in words is "sixty-three million, nine hundred fifty-five thousand, four hundred eighty".