253739782655 has 8 divisors (see below), whose sum is σ = 304522794000. Its totient is φ = 202968456256.

The previous prime is 253739782643. The next prime is 253739782679. The reversal of 253739782655 is 556287937352.

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

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-253739782655 is a prime.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 2873390 + ... + 2960379.

It is an arithmetic number, because the mean of its divisors is an integer number (38065349250).

Almost surely, 2^253739782655 is an apocalyptic number.

253739782655 is a deficient number, since it is larger than the sum of its proper divisors (50783011345).

253739782655 is an equidigital number, since it uses as much as digits as its factorization.

253739782655 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5842473.

The product of its digits is 95256000, while the sum is 62.

The spelling of 253739782655 in words is "two hundred fifty-three billion, seven hundred thirty-nine million, seven hundred eighty-two thousand, six hundred fifty-five".