253982783 has 16 divisors (see below), whose sum is σ = 277032960.
Its totient is φ = 232226400.
The previous prime is 253982749. The next prime is 253982791. The reversal of 253982783 is 387289352.
It is a cyclic number.
It is not a de Polignac number, because 253982783 - 28 = 253982527 is a prime.
It is a Harshad number since it is a multiple of its sum of digits (47).
It is a Duffinian number.
It is a congruent number.
It is not an unprimeable number, because it can be changed into a prime (253982713) by changing a digit.
It is a pernicious number, because its binary representation contains a prime number (17) of ones.
It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 39248 + ... + 45258.
It is an arithmetic number, because the mean of its divisors is an integer number (17314560).
Almost surely, 2253982783 is an apocalyptic number.
253982783 is a deficient number, since it is larger than the sum of its proper divisors (23050177).
253982783 is a wasteful number, since it uses less digits than its factorization.
253982783 is an odious number, because the sum of its binary digits is odd.
The sum of its prime factors is 6118.
The product of its digits is 725760, while the sum is 47.
The square root of 253982783 is about 15936.8372960258.
The cubic root of 253982783 is about 633.2882436659.
The spelling of 253982783 in words is "two hundred fifty-three million, nine hundred eighty-two thousand, seven hundred eighty-three".