53155330 has 8 divisors (see below), whose sum is σ = 95679612. Its totient is φ = 21262128.

The previous prime is 53155327. The next prime is 53155337. The reversal of 53155330 is 3355135.

It is a happy number.

It can be written as a sum of positive squares in 2 ways, for example, as 52838361 + 316969 = 7269^2 + 563^2 .

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

It is a junction number, because it is equal to n+sod(n) for n = 53155295 and 53155304.

It is not an unprimeable number, because it can be changed into a prime (53155337) 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, 2657757 + ... + 2657776.

Almost surely, 2^53155330 is an apocalyptic number.

53155330 is a deficient number, since it is larger than the sum of its proper divisors (42524282).

53155330 is a wasteful number, since it uses less digits than its factorization.

53155330 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5315540.

The product of its (nonzero) digits is 3375, while the sum is 25.

The square root of 53155330 is about 7290.7701925105. The cubic root of 53155330 is about 375.9951759227.

The spelling of 53155330 in words is "fifty-three million, one hundred fifty-five thousand, three hundred thirty".