1553088653 has 4 divisors (see below), whose sum is σ = 1595064060. Its totient is φ = 1511113248.

The previous prime is 1553088619. The next prime is 1553088659. The reversal of 1553088653 is 3568803551.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 1260747049 + 292341604 = 35507^2 + 17098^2 .

It is a cyclic number.

It is not a de Polignac number, because 1553088653 - 2²² = 1548894349 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1553088659) 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, 20987648 + ... + 20987721.

It is an arithmetic number, because the mean of its divisors is an integer number (398766015).

Almost surely, 2^1553088653 is an apocalyptic number.

It is an amenable number.

1553088653 is a deficient number, since it is larger than the sum of its proper divisors (41975407).

1553088653 is an equidigital number, since it uses as much as digits as its factorization.

1553088653 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 41975406.

The product of its (nonzero) digits is 432000, while the sum is 44.

The square root of 1553088653 is about 39409.2457806541. The cubic root of 1553088653 is about 1158.0627228701.

The spelling of 1553088653 in words is "one billion, five hundred fifty-three million, eighty-eight thousand, six hundred fifty-three".