53501538 has 8 divisors (see below), whose sum is σ = 107003088. Its totient is φ = 17833844.

The previous prime is 53501537. The next prime is 53501561. The reversal of 53501538 is 83510535.

It is a sphenic number, since it is the product of 3 distinct primes.

53501538 is an admirable number.

It is not an unprimeable number, because it can be changed into a prime (53501531) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 4458456 + ... + 4458467.

It is an arithmetic number, because the mean of its divisors is an integer number (13375386).

Almost surely, 2^53501538 is an apocalyptic number.

53501538 is a primitive abundant number, since it is smaller than the sum of its proper divisors, none of which is abundant.

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

53501538 is a wasteful number, since it uses less digits than its factorization.

53501538 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 8916928.

The product of its (nonzero) digits is 9000, while the sum is 30.

The square root of 53501538 is about 7314.4745539239. The cubic root of 53501538 is about 376.8097129000.

The spelling of 53501538 in words is "fifty-three million, five hundred one thousand, five hundred thirty-eight".