63545840 has 40 divisors (see below), whose sum is σ = 148303008. Its totient is φ = 25322240.

The previous prime is 63545831. The next prime is 63545851. The reversal of 63545840 is 4854536.

63545840 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a tau number, because it is divible by the number of its divisors (40).

It is a self number, because there is not a number n which added to its sum of digits gives 63545840.

It is a congruent number.

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, 22085 + ... + 24795.

Almost surely, 2^63545840 is an apocalyptic number.

It is an amenable number.

63545840 is an abundant number, since it is smaller than the sum of its proper divisors (84757168).

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

63545840 is a wasteful number, since it uses less digits than its factorization.

63545840 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3017 (or 3011 counting only the distinct ones).

The product of its (nonzero) digits is 57600, while the sum is 35.

The square root of 63545840 is about 7971.5644637674. The cubic root of 63545840 is about 399.0515863897.

The spelling of 63545840 in words is "sixty-three million, five hundred forty-five thousand, eight hundred forty".