53263317 has 4 divisors (see below), whose sum is σ = 71017760. Its totient is φ = 35508876.

The previous prime is 53263307. The next prime is 53263319. The reversal of 53263317 is 71336235.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is not a de Polignac number, because 53263317 - 2¹⁵ = 53230549 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 (53263319) 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, 8877217 + ... + 8877222.

It is an arithmetic number, because the mean of its divisors is an integer number (17754440).

Almost surely, 2^53263317 is an apocalyptic number.

It is an amenable number.

53263317 is a deficient number, since it is larger than the sum of its proper divisors (17754443).

53263317 is a wasteful number, since it uses less digits than its factorization.

53263317 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 17754442.

The product of its digits is 11340, while the sum is 30.

The square root of 53263317 is about 7298.1721684268. The cubic root of 53263317 is about 376.2496196874.

The spelling of 53263317 in words is "fifty-three million, two hundred sixty-three thousand, three hundred seventeen".