1052716521 has 8 divisors (see below), whose sum is σ = 1403797824. Its totient is φ = 701723120.

The previous prime is 1052716519. The next prime is 1052716571. The reversal of 1052716521 is 1256172501.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 1052716521 - 2¹ = 1052716519 is a prime.

It is a super-2 number, since 2×1052716521² = 2216424147172686882, which contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (1052716571) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 14731 + ... + 48191.

It is an arithmetic number, because the mean of its divisors is an integer number (175474728).

Almost surely, 2^1052716521 is an apocalyptic number.

It is an amenable number.

1052716521 is a deficient number, since it is larger than the sum of its proper divisors (351081303).

1052716521 is a wasteful number, since it uses less digits than its factorization.

1052716521 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 43951.

The product of its (nonzero) digits is 4200, while the sum is 30.

The square root of 1052716521 is about 32445.5932446920. The cubic root of 1052716521 is about 1017.2721296270.

The spelling of 1052716521 in words is "one billion, fifty-two million, seven hundred sixteen thousand, five hundred twenty-one".