63542745 has 64 divisors (see below), whose sum is σ = 135936000. Its totient is φ = 27511488.

The previous prime is 63542737. The next prime is 63542771. The reversal of 63542745 is 54724536.

It is not a de Polignac number, because 63542745 - 2³ = 63542737 is a prime.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 63 ways as a sum of consecutive naturals, for example, 16186 + ... + 19724.

It is an arithmetic number, because the mean of its divisors is an integer number (2124000).

Almost surely, 2^63542745 is an apocalyptic number.

It is an amenable number.

63542745 is an abundant number, since it is smaller than the sum of its proper divisors (72393255).

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

63542745 is a wasteful number, since it uses less digits than its factorization.

63542745 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3579 (or 3573 counting only the distinct ones).

The product of its digits is 100800, while the sum is 36.

The square root of 63542745 is about 7971.3703338886. The cubic root of 63542745 is about 399.0451076823.

The spelling of 63542745 in words is "sixty-three million, five hundred forty-two thousand, seven hundred forty-five".