1052232545521 has 8 divisors (see below), whose sum is σ = 1069574728104. Its totient is φ = 1034893345920.

The previous prime is 1052232545489. The next prime is 1052232545579. The reversal of 1052232545521 is 1255452322501.

It can be written as a sum of positive squares in 4 ways, for example, as 198898160400 + 853334385121 = 445980^2 + 923761^2 .

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 1052232545521 - 2⁵ = 1052232545489 is a prime.

It is a super-2 number, since 2×1052232545521² (a number of 25 digits) contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (1052232945521) 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, 28810 + ... + 1450963.

It is an arithmetic number, because the mean of its divisors is an integer number (133696841013).

Almost surely, 2^{1052232545521} is an apocalyptic number.

It is an amenable number.

1052232545521 is a deficient number, since it is larger than the sum of its proper divisors (17342182583).

1052232545521 is a wasteful number, since it uses less digits than its factorization.

1052232545521 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1491491.

The product of its (nonzero) digits is 120000, while the sum is 37.

The spelling of 1052232545521 in words is "one trillion, fifty-two billion, two hundred thirty-two million, five hundred forty-five thousand, five hundred twenty-one".