2031252505 has 4 divisors (see below), whose sum is σ = 2437503012. Its totient is φ = 1625002000.

The previous prime is 2031252473. The next prime is 2031252527. The reversal of 2031252505 is 5052521302.

It is a happy number.

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 885836169 + 1145416336 = 29763^2 + 33844^2 .

It is not a de Polignac number, because 2031252505 - 2⁵ = 2031252473 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 2031252505.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 203125246 + ... + 203125255.

It is an arithmetic number, because the mean of its divisors is an integer number (609375753).

Almost surely, 2^2031252505 is an apocalyptic number.

It is an amenable number.

2031252505 is a deficient number, since it is larger than the sum of its proper divisors (406250507).

2031252505 is an equidigital number, since it uses as much as digits as its factorization.

2031252505 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 406250506.

The product of its (nonzero) digits is 3000, while the sum is 25.

The square root of 2031252505 is about 45069.4187337711. The cubic root of 2031252505 is about 1266.4497753831.

Adding to 2031252505 its reverse (5052521302), we get a palindrome (7083773807).

The spelling of 2031252505 in words is "two billion, thirty-one million, two hundred fifty-two thousand, five hundred five".