53030665 has 8 divisors (see below), whose sum is σ = 63885960. Its totient is φ = 42258432.

The previous prime is 53030639. The next prime is 53030669. The reversal of 53030665 is 56603035.

It can be written as a sum of positive squares in 4 ways, for example, as 4769856 + 48260809 = 2184^2 + 6947^2 .

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

It is a cyclic number.

It is not a de Polignac number, because 53030665 - 2¹⁷ = 52899593 is a prime.

It is not an unprimeable number, because it can be changed into a prime (53030669) 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, 19350 + ... + 21919.

It is an arithmetic number, because the mean of its divisors is an integer number (7985745).

Almost surely, 2^53030665 is an apocalyptic number.

It is an amenable number.

53030665 is a deficient number, since it is larger than the sum of its proper divisors (10855295).

53030665 is a wasteful number, since it uses less digits than its factorization.

53030665 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 41531.

The product of its (nonzero) digits is 8100, while the sum is 28.

The square root of 53030665 is about 7282.2156655787. The cubic root of 53030665 is about 375.7010057962.

The spelling of 53030665 in words is "fifty-three million, thirty thousand, six hundred sixty-five".