253385732139 has 8 divisors (see below), whose sum is σ = 357721033680. Its totient is φ = 158987126016.

The previous prime is 253385732129. The next prime is 253385732153. The reversal of 253385732139 is 931237583352.

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 253385732139 - 2¹⁷ = 253385601067 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (51), and also a Moran number because the ratio is a prime number: 4968347689 = 253385732139 / (2 + 5 + 3 + 3 + 8 + 5 + 7 + 3 + 2 + 1 + 3 + 9).

It is a junction number, because it is equal to n+sod(n) for n = 253385732091 and 253385732100.

It is not an unprimeable number, because it can be changed into a prime (253385732129) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 2484173794 + ... + 2484173895.

It is an arithmetic number, because the mean of its divisors is an integer number (44715129210).

Almost surely, 2^253385732139 is an apocalyptic number.

253385732139 is a deficient number, since it is larger than the sum of its proper divisors (104335301541).

253385732139 is a wasteful number, since it uses less digits than its factorization.

253385732139 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4968347709.

The product of its digits is 4082400, while the sum is 51.

The spelling of 253385732139 in words is "two hundred fifty-three billion, three hundred eighty-five million, seven hundred thirty-two thousand, one hundred thirty-nine".