2153751603 has 4 divisors (see below), whose sum is σ = 2871668808. Its totient is φ = 1435834400.

The previous prime is 2153751569. The next prime is 2153751623. The reversal of 2153751603 is 3061573512.

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

It is a cyclic number.

It is not a de Polignac number, because 2153751603 - 2¹⁰ = 2153750579 is a prime.

It is not an unprimeable number, because it can be changed into a prime (2153751623) 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, 358958598 + ... + 358958603.

It is an arithmetic number, because the mean of its divisors is an integer number (717917202).

Almost surely, 2^2153751603 is an apocalyptic number.

2153751603 is a deficient number, since it is larger than the sum of its proper divisors (717917205).

2153751603 is an equidigital number, since it uses as much as digits as its factorization.

2153751603 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 717917204.

The product of its (nonzero) digits is 18900, while the sum is 33.

The square root of 2153751603 is about 46408.5294207864. The cubic root of 2153751603 is about 1291.4131506137.

The spelling of 2153751603 in words is "two billion, one hundred fifty-three million, seven hundred fifty-one thousand, six hundred three".