2151716053 has 4 divisors (see below), whose sum is σ = 2151964108. Its totient is φ = 2151468000.

The previous prime is 2151716051. The next prime is 2151716183. The reversal of 2151716053 is 3506171512.

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 135885649 + 2015830404 = 11657^2 + 44898^2 .

It is a cyclic number.

It is not a de Polignac number, because 2151716053 - 2¹ = 2151716051 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2151716051) 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, 110526 + ... + 128527.

It is an arithmetic number, because the mean of its divisors is an integer number (537991027).

Almost surely, 2^2151716053 is an apocalyptic number.

It is an amenable number.

2151716053 is a deficient number, since it is larger than the sum of its proper divisors (248055).

2151716053 is an equidigital number, since it uses as much as digits as its factorization.

2151716053 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 248054.

The product of its (nonzero) digits is 6300, while the sum is 31.

The square root of 2151716053 is about 46386.5934619045. The cubic root of 2151716053 is about 1291.0061763173.

Adding to 2151716053 its reverse (3506171512), we get a palindrome (5657887565).

The spelling of 2151716053 in words is "two billion, one hundred fifty-one million, seven hundred sixteen thousand, fifty-three".