1553104073 has 2 divisors, whose sum is σ = 1553104074. Its totient is φ = 1553104072.

The previous prime is 1553104009. The next prime is 1553104081. The reversal of 1553104073 is 3704013551.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 1540798009 + 12306064 = 39253^2 + 3508^2 .

It is a cyclic number.

It is not a de Polignac number, because 1553104073 - 2⁶ = 1553104009 is a prime.

It is not a weakly prime, because it can be changed into another prime (1553104093) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 776552036 + 776552037.

It is an arithmetic number, because the mean of its divisors is an integer number (776552037).

Almost surely, 2^1553104073 is an apocalyptic number.

It is an amenable number.

1553104073 is a deficient number, since it is larger than the sum of its proper divisors (1).

1553104073 is an equidigital number, since it uses as much as digits as its factorization.

1553104073 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 6300, while the sum is 29.

The square root of 1553104073 is about 39409.4414195380. The cubic root of 1553104073 is about 1158.0665555056.

The spelling of 1553104073 in words is "one billion, five hundred fifty-three million, one hundred four thousand, seventy-three".