1055510143 has 4 divisors (see below), whose sum is σ = 1055638800. Its totient is φ = 1055381488.

The previous prime is 1055510107. The next prime is 1055510149. The reversal of 1055510143 is 3410155501.

It is a happy number.

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

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-1055510143 is a prime.

It is a super-2 number, since 2×1055510143² = 2228203323951760898, which contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1055510149) 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, 51118 + ... + 68731.

It is an arithmetic number, because the mean of its divisors is an integer number (263909700).

Almost surely, 2^1055510143 is an apocalyptic number.

1055510143 is a deficient number, since it is larger than the sum of its proper divisors (128657).

1055510143 is an equidigital number, since it uses as much as digits as its factorization.

1055510143 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 128656.

The product of its (nonzero) digits is 1500, while the sum is 25.

The square root of 1055510143 is about 32488.6155906958. The cubic root of 1055510143 is about 1018.1711888996.

Adding to 1055510143 its reverse (3410155501), we get a palindrome (4465665644).

The spelling of 1055510143 in words is "one billion, fifty-five million, five hundred ten thousand, one hundred forty-three".