1154532250553 has 4 divisors (see below), whose sum is σ = 1259489727888. Its totient is φ = 1049574773220.

The previous prime is 1154532250541. The next prime is 1154532250559. The reversal of 1154532250553 is 3550522354511.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 1154532250553 - 2⁶ = 1154532250489 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 1154532250553.

It is not an unprimeable number, because it can be changed into a prime (1154532250559) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 52478738651 + ... + 52478738672.

It is an arithmetic number, because the mean of its divisors is an integer number (314872431972).

Almost surely, 2^{1154532250553} is an apocalyptic number.

It is an amenable number.

1154532250553 is a deficient number, since it is larger than the sum of its proper divisors (104957477335).

1154532250553 is a wasteful number, since it uses less digits than its factorization.

1154532250553 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 104957477334.

The product of its (nonzero) digits is 450000, while the sum is 41.

The spelling of 1154532250553 in words is "one trillion, one hundred fifty-four billion, five hundred thirty-two million, two hundred fifty thousand, five hundred fifty-three".