553420631 has 2 divisors, whose sum is σ = 553420632. Its totient is φ = 553420630.

The previous prime is 553420597. The next prime is 553420639. The reversal of 553420631 is 136024355.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 553420631 - 2²⁶ = 486311767 is a prime.

It is a super-2 number, since 2×553420631² = 612548789632876322, which contains 22 as substring.

It is a Chen prime.

It is a junction number, because it is equal to n+sod(n) for n = 553420594 and 553420603.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (553420639) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 276710315 + 276710316.

It is an arithmetic number, because the mean of its divisors is an integer number (276710316).

Almost surely, 2^553420631 is an apocalyptic number.

553420631 is a deficient number, since it is larger than the sum of its proper divisors (1).

553420631 is an equidigital number, since it uses as much as digits as its factorization.

553420631 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 10800, while the sum is 29.

The square root of 553420631 is about 23524.8938573588. The cubic root of 553420631 is about 821.0163043224.

Adding to 553420631 its reverse (136024355), we get a palindrome (689444986).

The spelling of 553420631 in words is "five hundred fifty-three million, four hundred twenty thousand, six hundred thirty-one".