1553553452453 has 2 divisors, whose sum is σ = 1553553452454. Its totient is φ = 1553553452452.

The previous prime is 1553553452431. The next prime is 1553553452467. The reversal of 1553553452453 is 3542543553551.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 1529629715524 + 23923736929 = 1236782^2 + 154673^2 .

It is a cyclic number.

It is not a de Polignac number, because 1553553452453 - 2⁶ = 1553553452389 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (1553553452483) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 776776726226 + 776776726227.

It is an arithmetic number, because the mean of its divisors is an integer number (776776726227).

Almost surely, 2^{1553553452453} is an apocalyptic number.

It is an amenable number.

1553553452453 is a deficient number, since it is larger than the sum of its proper divisors (1).

1553553452453 is an equidigital number, since it uses as much as digits as its factorization.

1553553452453 is an evil number, because the sum of its binary digits is even.

The product of its digits is 13500000, while the sum is 50.

The spelling of 1553553452453 in words is "one trillion, five hundred fifty-three billion, five hundred fifty-three million, four hundred fifty-two thousand, four hundred fifty-three".