1552453700639 has 2 divisors, whose sum is σ = 1552453700640. Its totient is φ = 1552453700638.

The previous prime is 1552453700591. The next prime is 1552453700659. The reversal of 1552453700639 is 9360073542551.

It is a happy number.

It is a strong prime.

It is an emirp because it is prime and its reverse (9360073542551) is a distict prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-1552453700639 is a prime.

It is a super-2 number, since 2×1552453700639² (a number of 25 digits) contains 22 as substring.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (1552453700659) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 776226850319 + 776226850320.

It is an arithmetic number, because the mean of its divisors is an integer number (776226850320).

Almost surely, 2^{1552453700639} is an apocalyptic number.

1552453700639 is a deficient number, since it is larger than the sum of its proper divisors (1).

1552453700639 is an equidigital number, since it uses as much as digits as its factorization.

1552453700639 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 3402000, while the sum is 50.

The spelling of 1552453700639 in words is "one trillion, five hundred fifty-two billion, four hundred fifty-three million, seven hundred thousand, six hundred thirty-nine".