53865370 has 24 divisors (see below), whose sum is σ = 104992956. Its totient is φ = 19888128.

The previous prime is 53865341. The next prime is 53865373. The reversal of 53865370 is 7356835.

It can be written as a sum of positive squares in 6 ways, for example, as 1635841 + 52229529 = 1279^2 + 7227^2 .

It is a Smith number, since the sum of its digits (37) coincides with the sum of the digits of its prime factors.

It is not an unprimeable number, because it can be changed into a prime (53865373) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 14247 + ... + 17626.

Almost surely, 2^53865370 is an apocalyptic number.

53865370 is a deficient number, since it is larger than the sum of its proper divisors (51127586).

53865370 is a wasteful number, since it uses less digits than its factorization.

53865370 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 31906 (or 31893 counting only the distinct ones).

The product of its (nonzero) digits is 75600, while the sum is 37.

The square root of 53865370 is about 7339.3031004313. The cubic root of 53865370 is about 377.6619365763.

The spelling of 53865370 in words is "fifty-three million, eight hundred sixty-five thousand, three hundred seventy".