1005252111250 has 40 divisors (see below), whose sum is σ = 1896723354240. Its totient is φ = 399437850000.

The previous prime is 1005252111191. The next prime is 1005252111277. The reversal of 1005252111250 is 521112525001.

It is a happy number.

It is a Harshad number since it is a multiple of its sum of digits (25).

It is an unprimeable number.

It is a polite number, since it can be written in 19 ways as a sum of consecutive naturals, for example, 2474170 + ... + 2851669.

It is an arithmetic number, because the mean of its divisors is an integer number (47418083856).

Almost surely, 2^{1005252111250} is an apocalyptic number.

1005252111250 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

1005252111250 is a deficient number, since it is larger than the sum of its proper divisors (891471242990).

1005252111250 is an equidigital number, since it uses as much as digits as its factorization.

1005252111250 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5326012 (or 5325997 counting only the distinct ones).

The product of its (nonzero) digits is 1000, while the sum is 25.

Adding to 1005252111250 its reverse (521112525001), we get a palindrome (1526364636251).

The spelling of 1005252111250 in words is "one trillion, five billion, two hundred fifty-two million, one hundred eleven thousand, two hundred fifty".