1052521216 has 36 divisors (see below), whose sum is σ = 2192288112. Its totient is φ = 503376896.

The previous prime is 1052521201. The next prime is 1052521219. The reversal of 1052521216 is 6121252501.

It is a super-2 number, since 2×1052521216² = 2215601820260237312, which contains 22 as substring.

It is an alternating number because its digits alternate between odd and even.

It is not an unprimeable number, because it can be changed into a prime (1052521219) 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, 83491 + ... + 95266.

It is an arithmetic number, because the mean of its divisors is an integer number (60896892).

Almost surely, 2^1052521216 is an apocalyptic number.

1052521216 is a gapful number since it is divisible by the number (16) formed by its first and last digit.

It is an amenable number.

1052521216 is an abundant number, since it is smaller than the sum of its proper divisors (1139766896).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

1052521216 is an equidigital number, since it uses as much as digits as its factorization.

1052521216 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 178796 (or 178782 counting only the distinct ones).

The product of its (nonzero) digits is 1200, while the sum is 25.

The square root of 1052521216 is about 32442.5833743246. The cubic root of 1052521216 is about 1017.2092160072.

Adding to 1052521216 its reverse (6121252501), we get a palindrome (7173773717).

The spelling of 1052521216 in words is "one billion, fifty-two million, five hundred twenty-one thousand, two hundred sixteen".