10521652249 has 8 divisors (see below), whose sum is σ = 11088800000. Its totient is φ = 9955842192.

The previous prime is 10521652237. The next prime is 10521652303. The reversal of 10521652249 is 94225612501.

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

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-10521652249 is a prime.

It is a super-2 number, since 2×10521652249² (a number of 21 digits) contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (10521652049) 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, 318249 + ... + 349750.

It is an arithmetic number, because the mean of its divisors is an integer number (1386100000).

Almost surely, 2^10521652249 is an apocalyptic number.

10521652249 is a gapful number since it is divisible by the number (19) formed by its first and last digit.

It is an amenable number.

10521652249 is a deficient number, since it is larger than the sum of its proper divisors (567147751).

10521652249 is an equidigital number, since it uses as much as digits as its factorization.

10521652249 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 668847.

The product of its (nonzero) digits is 43200, while the sum is 37.

The spelling of 10521652249 in words is "ten billion, five hundred twenty-one million, six hundred fifty-two thousand, two hundred forty-nine".