1550642425333 has 2 divisors, whose sum is σ = 1550642425334. Its totient is φ = 1550642425332.

The previous prime is 1550642425327. The next prime is 1550642425391. The reversal of 1550642425333 is 3335242460551.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 1452752911204 + 97889514129 = 1205302^2 + 312873^2 .

It is a cyclic number.

It is not a de Polignac number, because 1550642425333 - 2⁵ = 1550642425301 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 1550642425333.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (1550642425393) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 775321212666 + 775321212667.

It is an arithmetic number, because the mean of its divisors is an integer number (775321212667).

Almost surely, 2^{1550642425333} is an apocalyptic number.

It is an amenable number.

1550642425333 is a deficient number, since it is larger than the sum of its proper divisors (1).

1550642425333 is an equidigital number, since it uses as much as digits as its factorization.

1550642425333 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 1296000, while the sum is 43.

Adding to 1550642425333 its reverse (3335242460551), we get a palindrome (4885884885884).

The spelling of 1550642425333 in words is "one trillion, five hundred fifty billion, six hundred forty-two million, four hundred twenty-five thousand, three hundred thirty-three".