63007745 has 8 divisors (see below), whose sum is σ = 76002216. Its totient is φ = 50144256.

The previous prime is 63007733. The next prime is 63007751. The reversal of 63007745 is 54770036.

It can be written as a sum of positive squares in 4 ways, for example, as 2650384 + 60357361 = 1628^2 + 7769^2 .

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-63007745 is a prime.

It is a Duffinian number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 31682 + ... + 33611.

It is an arithmetic number, because the mean of its divisors is an integer number (9500277).

Almost surely, 2^63007745 is an apocalyptic number.

It is an amenable number.

63007745 is a deficient number, since it is larger than the sum of its proper divisors (12994471).

63007745 is a wasteful number, since it uses less digits than its factorization.

63007745 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 65491.

The product of its (nonzero) digits is 17640, while the sum is 32.

The square root of 63007745 is about 7937.7418073404. The cubic root of 63007745 is about 397.9220258348.

The spelling of 63007745 in words is "sixty-three million, seven thousand, seven hundred forty-five".