1602553 has 2 divisors, whose sum is σ = 1602554. Its totient is φ = 1602552.

The previous prime is 1602551. The next prime is 1602589. The reversal of 1602553 is 3552061.

It is a happy number.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 1432809 + 169744 = 1197^2 + 412^2 .

It is a cyclic number.

It is not a de Polignac number, because 1602553 - 2¹ = 1602551 is a prime.

It is a super-2 number, since 2×1602553² = 5136352235618, which contains 22 as substring.

Together with 1602551, it forms a pair of twin primes.

1602553 is a lucky number.

It is not a weakly prime, because it can be changed into another prime (1602551) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 801276 + 801277.

It is an arithmetic number, because the mean of its divisors is an integer number (801277).

2^1602553 is an apocalyptic number.

It is an amenable number.

1602553 is a deficient number, since it is larger than the sum of its proper divisors (1).

1602553 is an equidigital number, since it uses as much as digits as its factorization.

1602553 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 900, while the sum is 22.

The square root of 1602553 is about 1265.9198236855. The cubic root of 1602553 is about 117.0228849481.

The spelling of 1602553 in words is "one million, six hundred two thousand, five hundred fifty-three".