1553110225203 has 16 divisors (see below), whose sum is σ = 2142652367520. Its totient is φ = 999501828864.

The previous prime is 1553110225181. The next prime is 1553110225229. The reversal of 1553110225203 is 3025220113551.

It is not a de Polignac number, because 1553110225203 - 2⁹ = 1553110224691 is a prime.

It is a super-2 number, since 2×1553110225203² (a number of 25 digits) contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (1553110225003) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 1362226 + ... + 2227527.

It is an arithmetic number, because the mean of its divisors is an integer number (133915772970).

Almost surely, 2^{1553110225203} is an apocalyptic number.

1553110225203 is a deficient number, since it is larger than the sum of its proper divisors (589542142317).

1553110225203 is a wasteful number, since it uses less digits than its factorization.

1553110225203 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3594758.

The product of its (nonzero) digits is 9000, while the sum is 30.

Adding to 1553110225203 its reverse (3025220113551), we get a palindrome (4578330338754).

The spelling of 1553110225203 in words is "one trillion, five hundred fifty-three billion, one hundred ten million, two hundred twenty-five thousand, two hundred three".