1375975553 has 2 divisors, whose sum is σ = 1375975554. Its totient is φ = 1375975552.

The previous prime is 1375975543. The next prime is 1375975567. The reversal of 1375975553 is 3555795731.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 1375445569 + 529984 = 37087^2 + 728^2 .

It is an emirp because it is prime and its reverse (3555795731) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 1375975553 - 2⁴ = 1375975537 is a prime.

It is not a weakly prime, because it can be changed into another prime (1375975543) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 687987776 + 687987777.

It is an arithmetic number, because the mean of its divisors is an integer number (687987777).

Almost surely, 2^1375975553 is an apocalyptic number.

It is an amenable number.

1375975553 is a deficient number, since it is larger than the sum of its proper divisors (1).

1375975553 is an equidigital number, since it uses as much as digits as its factorization.

1375975553 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 2480625, while the sum is 50.

The square root of 1375975553 is about 37094.1444570434. The cubic root of 1375975553 is about 1112.2529661990.

The spelling of 1375975553 in words is "one billion, three hundred seventy-five million, nine hundred seventy-five thousand, five hundred fifty-three".