553421651 has 2 divisors, whose sum is σ = 553421652. Its totient is φ = 553421650.

The previous prime is 553421647. The next prime is 553421717. The reversal of 553421651 is 156124355.

553421651 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 553421651 - 2² = 553421647 is a prime.

It is a Sophie Germain prime.

It is a plaindrome in base 15.

It is not a weakly prime, because it can be changed into another prime (553471651) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 276710825 + 276710826.

It is an arithmetic number, because the mean of its divisors is an integer number (276710826).

Almost surely, 2^553421651 is an apocalyptic number.

553421651 is a deficient number, since it is larger than the sum of its proper divisors (1).

553421651 is an equidigital number, since it uses as much as digits as its factorization.

553421651 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 18000, while the sum is 32.

The square root of 553421651 is about 23524.9155365115. The cubic root of 553421651 is about 821.0168087224.

The spelling of 553421651 in words is "five hundred fifty-three million, four hundred twenty-one thousand, six hundred fifty-one".