1252632305 has 8 divisors (see below), whose sum is σ = 1503607272. Its totient is φ = 1001806848.

The previous prime is 1252632281. The next prime is 1252632319. The reversal of 1252632305 is 5032362521.

It can be written as a sum of positive squares in 4 ways, for example, as 560363584 + 692268721 = 23672^2 + 26311^2 .

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 1252632305 - 2¹⁴ = 1252615921 is a prime.

It is a super-2 number, since 2×1252632305² = 3138175383059226050, which contains 22 as substring.

It is a Duffinian number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 18032 + ... + 53201.

It is an arithmetic number, because the mean of its divisors is an integer number (187950909).

Almost surely, 2^1252632305 is an apocalyptic number.

It is an amenable number.

1252632305 is a deficient number, since it is larger than the sum of its proper divisors (250974967).

1252632305 is an equidigital number, since it uses as much as digits as its factorization.

1252632305 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 74755.

The product of its (nonzero) digits is 10800, while the sum is 29.

The square root of 1252632305 is about 35392.5458959934. The cubic root of 1252632305 is about 1077.9729654186.

Adding to 1252632305 its reverse (5032362521), we get a palindrome (6284994826).

The spelling of 1252632305 in words is "one billion, two hundred fifty-two million, six hundred thirty-two thousand, three hundred five".