53738915 has 4 divisors (see below), whose sum is σ = 64486704. Its totient is φ = 42991128.

The previous prime is 53738857. The next prime is 53738917. The reversal of 53738915 is 51983735.

It is a happy number.

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

It is a cyclic number.

It is not a de Polignac number, because 53738915 - 2⁶ = 53738851 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (53738917) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 5373887 + ... + 5373896.

It is an arithmetic number, because the mean of its divisors is an integer number (16121676).

Almost surely, 2^53738915 is an apocalyptic number.

53738915 is a deficient number, since it is larger than the sum of its proper divisors (10747789).

53738915 is a wasteful number, since it uses less digits than its factorization.

53738915 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 10747788.

The product of its digits is 113400, while the sum is 41.

The square root of 53738915 is about 7330.6831196008. The cubic root of 53738915 is about 377.3661704169.

The spelling of 53738915 in words is "fifty-three million, seven hundred thirty-eight thousand, nine hundred fifteen".