53730965 has 16 divisors (see below), whose sum is σ = 68588208. Its totient is φ = 40267776.

The previous prime is 53730961. The next prime is 53730973. The reversal of 53730965 is 56903735.

It can be written as a sum of positive squares in 8 ways, for example, as 3363556 + 50367409 = 1834^2 + 7097^2 .

It is a cyclic number.

It is not a de Polignac number, because 53730965 - 2² = 53730961 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (53730961) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 18449 + ... + 21161.

It is an arithmetic number, because the mean of its divisors is an integer number (4286763).

Almost surely, 2^53730965 is an apocalyptic number.

It is an amenable number.

53730965 is a deficient number, since it is larger than the sum of its proper divisors (14857243).

53730965 is a wasteful number, since it uses less digits than its factorization.

53730965 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2968.

The product of its (nonzero) digits is 85050, while the sum is 38.

The square root of 53730965 is about 7330.1408581282. The cubic root of 53730965 is about 377.3475606316.

The spelling of 53730965 in words is "fifty-three million, seven hundred thirty thousand, nine hundred sixty-five".