63031538 has 4 divisors (see below), whose sum is σ = 94547310. Its totient is φ = 31515768.

The previous prime is 63031519. The next prime is 63031541. The reversal of 63031538 is 83513036.

63031538 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in only one way, i.e., 32638369 + 30393169 = 5713^2 + 5513^2 .

It is a self number, because there is not a number n which added to its sum of digits gives 63031538.

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 as a sum of consecutive naturals, namely, 15757883 + ... + 15757886.

Almost surely, 2^63031538 is an apocalyptic number.

63031538 is a deficient number, since it is larger than the sum of its proper divisors (31515772).

63031538 is a wasteful number, since it uses less digits than its factorization.

63031538 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 31515771.

The product of its (nonzero) digits is 6480, while the sum is 29.

The square root of 63031538 is about 7939.2403918763. The cubic root of 63031538 is about 397.9721073354.

The spelling of 63031538 in words is "sixty-three million, thirty-one thousand, five hundred thirty-eight".