1252253705 has 8 divisors (see below), whose sum is σ = 1506381000. Its totient is φ = 999351936.

The previous prime is 1252253687. The next prime is 1252253707. The reversal of 1252253705 is 5073522521.

It can be written as a sum of positive squares in 4 ways, for example, as 330766969 + 921486736 = 18187^2 + 30356^2 .

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 1252253705 - 2¹⁰ = 1252252681 is a prime.

It is not an unprimeable number, because it can be changed into a prime (1252253707) 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, 304130 + ... + 308219.

It is an arithmetic number, because the mean of its divisors is an integer number (188297625).

Almost surely, 2^1252253705 is an apocalyptic number.

It is an amenable number.

1252253705 is a deficient number, since it is larger than the sum of its proper divisors (254127295).

1252253705 is an equidigital number, since it uses as much as digits as its factorization.

1252253705 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 612763.

The product of its (nonzero) digits is 21000, while the sum is 32.

The square root of 1252253705 is about 35387.1969079214. The cubic root of 1252253705 is about 1077.8643510265.

The spelling of 1252253705 in words is "one billion, two hundred fifty-two million, two hundred fifty-three thousand, seven hundred five".