426553 has 2 divisors, whose sum is σ = 426554. Its totient is φ = 426552.

The previous prime is 426551. The next prime is 426563. The reversal of 426553 is 355624.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 426409 + 144 = 653^2 + 12^2 .

It is a cyclic number.

It is not a de Polignac number, because 426553 - 2¹ = 426551 is a prime.

Together with 426551, it forms a pair of twin primes.

It is an Ulam number.

It is not a weakly prime, because it can be changed into another prime (426551) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 213276 + 213277.

It is an arithmetic number, because the mean of its divisors is an integer number (213277).

2⁴²⁶⁵⁵³ is an apocalyptic number.

It is an amenable number.

426553 is a deficient number, since it is larger than the sum of its proper divisors (1).

426553 is an equidigital number, since it uses as much as digits as its factorization.

426553 is an evil number, because the sum of its binary digits is even.

The product of its digits is 3600, while the sum is 25.

The square root of 426553 is about 653.1102510296. The cubic root of 426553 is about 75.2761964399.

It can be divided in two parts, 426 and 553, that added together give a palindrome (979).

The spelling of 426553 in words is "four hundred twenty-six thousand, five hundred fifty-three".