1553650601 has 2 divisors, whose sum is σ = 1553650602. Its totient is φ = 1553650600.

The previous prime is 1553650507. The next prime is 1553650633. The reversal of 1553650601 is 1060563551.

It is an a-pointer prime, because the next prime (1553650633) can be obtained adding 1553650601 to its sum of digits (32).

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 1465741225 + 87909376 = 38285^2 + 9376^2 .

It is an emirp because it is prime and its reverse (1060563551) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 1553650601 - 2¹⁰ = 1553649577 is a prime.

It is a super-2 number, since 2×1553650601² = 4827660379975322402, which contains 22 as substring.

It is a Sophie Germain prime.

It is a Curzon number.

It is not a weakly prime, because it can be changed into another prime (1553650801) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 776825300 + 776825301.

It is an arithmetic number, because the mean of its divisors is an integer number (776825301).

Almost surely, 2^1553650601 is an apocalyptic number.

It is an amenable number.

1553650601 is a deficient number, since it is larger than the sum of its proper divisors (1).

1553650601 is an equidigital number, since it uses as much as digits as its factorization.

1553650601 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 13500, while the sum is 32.

The square root of 1553650601 is about 39416.3747825697. The cubic root of 1553650601 is about 1158.2023784648.

The spelling of 1553650601 in words is "one billion, five hundred fifty-three million, six hundred fifty thousand, six hundred one".