656383451 has 2 divisors, whose sum is σ = 656383452. Its totient is φ = 656383450.

The previous prime is 656383423. The next prime is 656383457. The reversal of 656383451 is 154383656.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 656383451 - 2¹⁴ = 656367067 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 656383399 and 656383408.

It is not a weakly prime, because it can be changed into another prime (656383457) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 328191725 + 328191726.

It is an arithmetic number, because the mean of its divisors is an integer number (328191726).

Almost surely, 2^656383451 is an apocalyptic number.

656383451 is a deficient number, since it is larger than the sum of its proper divisors (1).

656383451 is an equidigital number, since it uses as much as digits as its factorization.

656383451 is an evil number, because the sum of its binary digits is even.

The product of its digits is 259200, while the sum is 41.

The square root of 656383451 is about 25619.9814793063. The cubic root of 656383451 is about 869.0655625285.

The spelling of 656383451 in words is "six hundred fifty-six million, three hundred eighty-three thousand, four hundred fifty-one".