1051717553 has 4 divisors (see below), whose sum is σ = 1062560100. Its totient is φ = 1040875008.

The previous prime is 1051717549. The next prime is 1051717561. The reversal of 1051717553 is 3557171501.

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 193989184 + 857728369 = 13928^2 + 29287^2 .

It is a cyclic number.

It is not a de Polignac number, because 1051717553 - 2² = 1051717549 is a prime.

It is a super-2 number, since 2×1051717553² = 2212219622576615618, which contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (1051717453) 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, 5421128 + ... + 5421321.

It is an arithmetic number, because the mean of its divisors is an integer number (265640025).

Almost surely, 2^1051717553 is an apocalyptic number.

It is an amenable number.

1051717553 is a deficient number, since it is larger than the sum of its proper divisors (10842547).

1051717553 is an equidigital number, since it uses as much as digits as its factorization.

1051717553 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 10842546.

The product of its (nonzero) digits is 18375, while the sum is 35.

The square root of 1051717553 is about 32430.1950811277. The cubic root of 1051717553 is about 1016.9502500264.

The spelling of 1051717553 in words is "one billion, fifty-one million, seven hundred seventeen thousand, five hundred fifty-three".