1252304553040 has 20 divisors (see below), whose sum is σ = 2911608086004. Its totient is φ = 500921821184.

The previous prime is 1252304552957. The next prime is 1252304553079. The reversal of 1252304553040 is 403554032521.

It can be written as a sum of positive squares in 2 ways, for example, as 138030082576 + 1114274470464 = 371524^2 + 1055592^2 .

It is a tau number, because it is divible by the number of its divisors (20).

It is a junction number, because it is equal to n+sod(n) for n = 1252304552987 and 1252304553005.

It is a congruent number.

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, 7826903377 + ... + 7826903536.

Almost surely, 2^{1252304553040} is an apocalyptic number.

1252304553040 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

1252304553040 is an abundant number, since it is smaller than the sum of its proper divisors (1659303532964).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

1252304553040 is a wasteful number, since it uses less digits than its factorization.

1252304553040 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 15653806926 (or 15653806920 counting only the distinct ones).

The product of its (nonzero) digits is 72000, while the sum is 34.

Adding to 1252304553040 its reverse (403554032521), we get a palindrome (1655858585561).

The spelling of 1252304553040 in words is "one trillion, two hundred fifty-two billion, three hundred four million, five hundred fifty-three thousand, forty".