253805677 has 2 divisors, whose sum is σ = 253805678. Its totient is φ = 253805676.

The previous prime is 253805659. The next prime is 253805701. The reversal of 253805677 is 776508352.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 214505316 + 39300361 = 14646^2 + 6269^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-253805677 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (253805777) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 126902838 + 126902839.

It is an arithmetic number, because the mean of its divisors is an integer number (126902839).

Almost surely, 2^253805677 is an apocalyptic number.

It is an amenable number.

253805677 is a deficient number, since it is larger than the sum of its proper divisors (1).

253805677 is an equidigital number, since it uses as much as digits as its factorization.

253805677 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 352800, while the sum is 43.

The square root of 253805677 is about 15931.2798293169. The cubic root of 253805677 is about 633.1410089773.

The spelling of 253805677 in words is "two hundred fifty-three million, eight hundred five thousand, six hundred seventy-seven".