53630638 has 4 divisors (see below), whose sum is σ = 80445960. Its totient is φ = 26815318.

The previous prime is 53630627. The next prime is 53630639. The reversal of 53630638 is 83603635.

It is a happy number.

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

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (53630639) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 13407658 + ... + 13407661.

It is an arithmetic number, because the mean of its divisors is an integer number (20111490).

Almost surely, 2^53630638 is an apocalyptic number.

53630638 is a deficient number, since it is larger than the sum of its proper divisors (26815322).

53630638 is a wasteful number, since it uses less digits than its factorization.

53630638 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 26815321.

The product of its (nonzero) digits is 38880, while the sum is 34.

The square root of 53630638 is about 7323.2942041133. The cubic root of 53630638 is about 377.1125519098.

The spelling of 53630638 in words is "fifty-three million, six hundred thirty thousand, six hundred thirty-eight".