53155533 has 8 divisors (see below), whose sum is σ = 70909600. Its totient is φ = 35419248.

The previous prime is 53155523. The next prime is 53155547. The reversal of 53155533 is 33555135.

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

It is not a de Polignac number, because 53155533 - 2⁹ = 53155021 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 53155533.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (53155523) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 6123 + ... + 11991.

It is an arithmetic number, because the mean of its divisors is an integer number (8863700).

Almost surely, 2^53155533 is an apocalyptic number.

It is an amenable number.

53155533 is a deficient number, since it is larger than the sum of its proper divisors (17754067).

53155533 is a wasteful number, since it uses less digits than its factorization.

53155533 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 8891.

The product of its digits is 16875, while the sum is 30.

The square root of 53155533 is about 7290.7841142088. The cubic root of 53155533 is about 375.9956545635.

The spelling of 53155533 in words is "fifty-three million, one hundred fifty-five thousand, five hundred thirty-three".