1252530504135 has 24 divisors (see below), whose sum is σ = 2173360123584. Its totient is φ = 667306345920.

The previous prime is 1252530504061. The next prime is 1252530504143. The reversal of 1252530504135 is 5314050352521.

1252530504135 is a `hidden beast` number, since 1 + 2 + 5 + 2 + 530 + 50 + 41 + 35 = 666.

It is not a de Polignac number, because 1252530504135 - 2¹⁰ = 1252530503111 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 1252530504135.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 14747247 + ... + 14831936.

It is an arithmetic number, because the mean of its divisors is an integer number (90556671816).

Almost surely, 2^{1252530504135} is an apocalyptic number.

1252530504135 is a gapful number since it is divisible by the number (15) formed by its first and last digit.

1252530504135 is a deficient number, since it is larger than the sum of its proper divisors (920829619449).

1252530504135 is a wasteful number, since it uses less digits than its factorization.

1252530504135 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 29580135 (or 29580132 counting only the distinct ones).

The product of its (nonzero) digits is 90000, while the sum is 36.

Adding to 1252530504135 its reverse (5314050352521), we get a palindrome (6566580856656).

The spelling of 1252530504135 in words is "one trillion, two hundred fifty-two billion, five hundred thirty million, five hundred four thousand, one hundred thirty-five".