1552543 has 2 divisors, whose sum is σ = 1552544. Its totient is φ = 1552542.

The previous prime is 1552541. The next prime is 1552553. The reversal of 1552543 is 3452551.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 1552543 - 2¹ = 1552541 is a prime.

Together with 1552541, it forms a pair of twin primes.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (1552541) 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, 776271 + 776272.

It is an arithmetic number, because the mean of its divisors is an integer number (776272).

2^1552543 is an apocalyptic number.

1552543 is a deficient number, since it is larger than the sum of its proper divisors (1).

1552543 is an equidigital number, since it uses as much as digits as its factorization.

1552543 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 3000, while the sum is 25.

The square root of 1552543 is about 1246.0108346238. The cubic root of 1552543 is about 115.7927084677.

The spelling of 1552543 in words is "one million, five hundred fifty-two thousand, five hundred forty-three".