53263638 has 12 divisors (see below), whose sum is σ = 115404588. Its totient is φ = 17754540.

The previous prime is 53263619. The next prime is 53263649. The reversal of 53263638 is 83636235.

It is a happy number.

53263638 is a `hidden beast` number, since 532 + 63 + 63 + 8 = 666.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 1479528 + ... + 1479563.

It is an arithmetic number, because the mean of its divisors is an integer number (9617049).

Almost surely, 2^53263638 is an apocalyptic number.

53263638 is an abundant number, since it is smaller than the sum of its proper divisors (62140950).

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

53263638 is a wasteful number, since it uses less digits than its factorization.

53263638 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2959099 (or 2959096 counting only the distinct ones).

The product of its digits is 77760, while the sum is 36.

The square root of 53263638 is about 7298.1941602015. The cubic root of 53263638 is about 376.2503755290.

The spelling of 53263638 in words is "fifty-three million, two hundred sixty-three thousand, six hundred thirty-eight".