1252423515052 has 24 divisors (see below), whose sum is σ = 2307276339200. Its totient is φ = 593206857936.

The previous prime is 1252423515047. The next prime is 1252423515053. The reversal of 1252423515052 is 2505153242521.

It is a super-2 number, since 2×1252423515052² (a number of 25 digits) contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (1252423515053) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 344053 + ... + 1619635.

Almost surely, 2^{1252423515052} is an apocalyptic number.

It is an amenable number.

1252423515052 is a deficient number, since it is larger than the sum of its proper divisors (1054852824148).

1252423515052 is a wasteful number, since it uses less digits than its factorization.

1252423515052 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1288525 (or 1288523 counting only the distinct ones).

The product of its (nonzero) digits is 120000, while the sum is 37.

Adding to 1252423515052 its reverse (2505153242521), we get a palindrome (3757576757573).

The spelling of 1252423515052 in words is "one trillion, two hundred fifty-two billion, four hundred twenty-three million, five hundred fifteen thousand, fifty-two".