253550317 has 16 divisors (see below), whose sum is σ = 266112000. Its totient is φ = 241368624.

The previous prime is 253550281. The next prime is 253550377. The reversal of 253550317 is 713055352.

It is a cyclic number.

It is not a de Polignac number, because 253550317 - 2¹⁹ = 253026029 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 (253550377) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 352284 + ... + 353002.

It is an arithmetic number, because the mean of its divisors is an integer number (16632000).

Almost surely, 2^253550317 is an apocalyptic number.

It is an amenable number.

253550317 is a deficient number, since it is larger than the sum of its proper divisors (12561683).

253550317 is a wasteful number, since it uses less digits than its factorization.

253550317 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 960.

The product of its (nonzero) digits is 15750, while the sum is 31.

The square root of 253550317 is about 15923.2633903983. The cubic root of 253550317 is about 632.9285982552.

The spelling of 253550317 in words is "two hundred fifty-three million, five hundred fifty thousand, three hundred seventeen".