426651553 has 2 divisors, whose sum is σ = 426651554. Its totient is φ = 426651552.

The previous prime is 426651539. The next prime is 426651607. The reversal of 426651553 is 355156624.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 323568144 + 103083409 = 17988^2 + 10153^2 .

It is a cyclic number.

It is not a de Polignac number, because 426651553 - 2⁵ = 426651521 is a prime.

It is not a weakly prime, because it can be changed into another prime (426651053) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 213325776 + 213325777.

It is an arithmetic number, because the mean of its divisors is an integer number (213325777).

Almost surely, 2^426651553 is an apocalyptic number.

It is an amenable number.

426651553 is a deficient number, since it is larger than the sum of its proper divisors (1).

426651553 is an equidigital number, since it uses as much as digits as its factorization.

426651553 is an evil number, because the sum of its binary digits is even.

The product of its digits is 108000, while the sum is 37.

The square root of 426651553 is about 20655.5453329124. The cubic root of 426651553 is about 752.8199339343.

The spelling of 426651553 in words is "four hundred twenty-six million, six hundred fifty-one thousand, five hundred fifty-three".