63745530 has 32 divisors (see below), whose sum is σ = 153494784. Its totient is φ = 16942656.

The previous prime is 63745523. The next prime is 63745537. The reversal of 63745530 is 3554736.

It is an interprime number because it is at equal distance from previous prime (63745523) and next prime (63745537).

It is a Curzon number.

It is a junction number, because it is equal to n+sod(n) for n = 63745491 and 63745500.

It is not an unprimeable number, because it can be changed into a prime (63745537) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 6159 + ... + 12861.

It is an arithmetic number, because the mean of its divisors is an integer number (4796712).

Almost surely, 2^63745530 is an apocalyptic number.

63745530 is an abundant number, since it is smaller than the sum of its proper divisors (89749254).

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

63745530 is a wasteful number, since it uses less digits than its factorization.

63745530 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 7030.

The product of its (nonzero) digits is 37800, while the sum is 33.

The square root of 63745530 is about 7984.0797841705. The cubic root of 63745530 is about 399.4691499739.

The spelling of 63745530 in words is "sixty-three million, seven hundred forty-five thousand, five hundred thirty".