53257165 has 16 divisors (see below), whose sum is σ = 68979456. Its totient is φ = 39240000.

The previous prime is 53257159. The next prime is 53257181. The reversal of 53257165 is 56175235.

It is not a de Polignac number, because 53257165 - 2¹³ = 53248973 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 53257165.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 48270 + ... + 49360.

It is an arithmetic number, because the mean of its divisors is an integer number (4311216).

Almost surely, 2^53257165 is an apocalyptic number.

It is an amenable number.

53257165 is a deficient number, since it is larger than the sum of its proper divisors (15722291).

53257165 is a wasteful number, since it uses less digits than its factorization.

53257165 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1860.

The product of its digits is 31500, while the sum is 34.

The square root of 53257165 is about 7297.7506808605. The cubic root of 53257165 is about 376.2351333147.

The spelling of 53257165 in words is "fifty-three million, two hundred fifty-seven thousand, one hundred sixty-five".