2616710521 has 4 divisors (see below), whose sum is σ = 2626892532. Its totient is φ = 2606528512.

The previous prime is 2616710507. The next prime is 2616710531. The reversal of 2616710521 is 1250176162.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 1250176162 = 2 ⋅625088081.

It can be written as a sum of positive squares in 2 ways, for example, as 2324300521 + 292410000 = 48211^2 + 17100^2 .

It is a cyclic number.

It is not a de Polignac number, because 2616710521 - 2¹⁹ = 2616186233 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (2616710531) 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, 5090620 + ... + 5091133.

It is an arithmetic number, because the mean of its divisors is an integer number (656723133).

Almost surely, 2^2616710521 is an apocalyptic number.

It is an amenable number.

2616710521 is a deficient number, since it is larger than the sum of its proper divisors (10182011).

2616710521 is a wasteful number, since it uses less digits than its factorization.

2616710521 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 10182010.

The product of its (nonzero) digits is 5040, while the sum is 31.

The square root of 2616710521 is about 51153.7928310306. The cubic root of 2616710521 is about 1378.0084907244.

Adding to 2616710521 its reverse (1250176162), we get a palindrome (3866886683).

The spelling of 2616710521 in words is "two billion, six hundred sixteen million, seven hundred ten thousand, five hundred twenty-one".