653795851 has 2 divisors, whose sum is σ = 653795852. Its totient is φ = 653795850.

The previous prime is 653795767. The next prime is 653795867. The reversal of 653795851 is 158597356.

It is a strong prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-653795851 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 653795795 and 653795804.

It is not a weakly prime, because it can be changed into another prime (653795551) 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, 326897925 + 326897926.

It is an arithmetic number, because the mean of its divisors is an integer number (326897926).

Almost surely, 2^653795851 is an apocalyptic number.

653795851 is a deficient number, since it is larger than the sum of its proper divisors (1).

653795851 is an equidigital number, since it uses as much as digits as its factorization.

653795851 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 1134000, while the sum is 49.

The square root of 653795851 is about 25569.4319647504. The cubic root of 653795851 is about 867.9220461858.

The spelling of 653795851 in words is "six hundred fifty-three million, seven hundred ninety-five thousand, eight hundred fifty-one".