1252520205 has 8 divisors (see below), whose sum is σ = 2004032352. Its totient is φ = 668010768.

The previous prime is 1252520197. The next prime is 1252520231. The reversal of 1252520205 is 5020252521.

1252520205 is digitally balanced in base 4, because in such base it contains all the possibile digits an equal number of times.

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 1252520205 - 2³ = 1252520197 is a prime.

It is a congruent 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, 41750659 + ... + 41750688.

It is an arithmetic number, because the mean of its divisors is an integer number (250504044).

Almost surely, 2^1252520205 is an apocalyptic number.

1252520205 is a gapful number since it is divisible by the number (15) formed by its first and last digit.

It is an amenable number.

1252520205 is a deficient number, since it is larger than the sum of its proper divisors (751512147).

1252520205 is an equidigital number, since it uses as much as digits as its factorization.

1252520205 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 83501355.

The product of its (nonzero) digits is 2000, while the sum is 24.

The square root of 1252520205 is about 35390.9621937579. The cubic root of 1252520205 is about 1077.9408079706.

Adding to 1252520205 its reverse (5020252521), we get a palindrome (6272772726).

The spelling of 1252520205 in words is "one billion, two hundred fifty-two million, five hundred twenty thousand, two hundred five".