53385538 has 4 divisors (see below), whose sum is σ = 80078310. Its totient is φ = 26692768.

The previous prime is 53385529. The next prime is 53385547. The reversal of 53385538 is 83558335.

It is a happy number.

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

It is an interprime number because it is at equal distance from previous prime (53385529) and next prime (53385547).

It can be written as a sum of positive squares in only one way, i.e., 41641209 + 11744329 = 6453^2 + 3427^2 .

It is a self number, because there is not a number n which added to its sum of digits gives 53385538.

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 13346383 + ... + 13346386.

Almost surely, 2^53385538 is an apocalyptic number.

53385538 is a deficient number, since it is larger than the sum of its proper divisors (26692772).

53385538 is a wasteful number, since it uses less digits than its factorization.

53385538 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 26692771.

The product of its digits is 216000, while the sum is 40.

The square root of 53385538 is about 7306.5407683801. The cubic root of 53385538 is about 376.5371876824.

The spelling of 53385538 in words is "fifty-three million, three hundred eighty-five thousand, five hundred thirty-eight".