1955533 has 2 divisors, whose sum is σ = 1955534. Its totient is φ = 1955532.

The previous prime is 1955531. The next prime is 1955539. The reversal of 1955533 is 3355591.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 1855044 + 100489 = 1362^2 + 317^2 .

It is a cyclic number.

It is not a de Polignac number, because 1955533 - 2¹ = 1955531 is a prime.

Together with 1955531, it forms a pair of twin primes.

It is an Ulam number.

It is a d-powerful number, because it can be written as 1 + 9 + 5 + 5³ + 5⁹ + 3⁴ + 3⁷ .

It is a junction number, because it is equal to n+sod(n) for n = 1955495 and 1955504.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (1955531) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 977766 + 977767.

It is an arithmetic number, because the mean of its divisors is an integer number (977767).

2^1955533 is an apocalyptic number.

It is an amenable number.

1955533 is a deficient number, since it is larger than the sum of its proper divisors (1).

1955533 is an equidigital number, since it uses as much as digits as its factorization.

1955533 is an evil number, because the sum of its binary digits is even.

The product of its digits is 10125, while the sum is 31.

The square root of 1955533 is about 1398.4037328325. The cubic root of 1955533 is about 125.0513495696.

The spelling of 1955533 in words is "one million, nine hundred fifty-five thousand, five hundred thirty-three".