53609538 has 8 divisors (see below), whose sum is σ = 107219088. Its totient is φ = 17869844.

The previous prime is 53609537. The next prime is 53609557. The reversal of 53609538 is 83590635.

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

53609538 is an admirable number.

It is a junction number, because it is equal to n+sod(n) for n = 53609496 and 53609505.

It is not an unprimeable number, because it can be changed into a prime (53609537) 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, 4467456 + ... + 4467467.

It is an arithmetic number, because the mean of its divisors is an integer number (13402386).

Almost surely, 2^53609538 is an apocalyptic number.

53609538 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.

53609538 is a wasteful number, since it uses less digits than its factorization.

53609538 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 8934928.

The product of its (nonzero) digits is 97200, while the sum is 39.

The square root of 53609538 is about 7321.8534538735. The cubic root of 53609538 is about 377.0630893955.

The spelling of 53609538 in words is "fifty-three million, six hundred nine thousand, five hundred thirty-eight".