1252957529 has 4 divisors (see below), whose sum is σ = 1286821284. Its totient is φ = 1219093776.

The previous prime is 1252957493. The next prime is 1252957561. The reversal of 1252957529 is 9257592521.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 564157504 + 688800025 = 23752^2 + 26245^2 .

It is a cyclic number.

It is not a de Polignac number, because 1252957529 - 2²⁰ = 1251908953 is a prime.

It is a Duffinian number.

It is a Curzon number.

It is not an unprimeable number, because it can be changed into a prime (1252957129) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 16931822 + ... + 16931895.

It is an arithmetic number, because the mean of its divisors is an integer number (321705321).

Almost surely, 2^1252957529 is an apocalyptic number.

It is an amenable number.

1252957529 is a deficient number, since it is larger than the sum of its proper divisors (33863755).

1252957529 is an equidigital number, since it uses as much as digits as its factorization.

1252957529 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 33863754.

The product of its digits is 567000, while the sum is 47.

The square root of 1252957529 is about 35397.1401245920. The cubic root of 1252957529 is about 1078.0662496015.

The spelling of 1252957529 in words is "one billion, two hundred fifty-two million, nine hundred fifty-seven thousand, five hundred twenty-nine".