1053117553 has 4 divisors (see below), whose sum is σ = 1053212580. Its totient is φ = 1053022528.

The previous prime is 1053117551. The next prime is 1053117557. The reversal of 1053117553 is 3557113501.

It is a semiprime because it is the product of two primes, and also a brilliant number, because the two primes have the same length.

It can be written as a sum of positive squares in 2 ways, for example, as 166745569 + 886371984 = 12913^2 + 29772^2 .

It is a cyclic number.

It is not a de Polignac number, because 1053117553 - 2¹ = 1053117551 is a prime.

It is a super-2 number, since 2×1053117553² = 2218113160873415618, which contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (1053117551) 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, 28300 + ... + 53917.

It is an arithmetic number, because the mean of its divisors is an integer number (263303145).

Almost surely, 2^1053117553 is an apocalyptic number.

It is an amenable number.

1053117553 is a deficient number, since it is larger than the sum of its proper divisors (95027).

1053117553 is an equidigital number, since it uses as much as digits as its factorization.

1053117553 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 95026.

The product of its (nonzero) digits is 7875, while the sum is 31.

The square root of 1053117553 is about 32451.7727250762. The cubic root of 1053117553 is about 1017.4012897177.

The spelling of 1053117553 in words is "one billion, fifty-three million, one hundred seventeen thousand, five hundred fifty-three".