1252538789025 has 24 divisors (see below), whose sum is σ = 2142273242880. Its totient is φ = 644985490240.

The previous prime is 1252538789017. The next prime is 1252538789041. The reversal of 1252538789025 is 5209878352521.

It is not a de Polignac number, because 1252538789025 - 2³ = 1252538789017 is a prime.

It is an unprimeable number.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 287937777 + ... + 287942126.

It is an arithmetic number, because the mean of its divisors is an integer number (89261385120).

Almost surely, 2^{1252538789025} is an apocalyptic number.

1252538789025 is a gapful number since it is divisible by the number (15) formed by its first and last digit.

It is an amenable number.

1252538789025 is a deficient number, since it is larger than the sum of its proper divisors (889734453855).

1252538789025 is a wasteful number, since it uses less digits than its factorization.

1252538789025 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 575879945 (or 575879940 counting only the distinct ones).

The product of its (nonzero) digits is 12096000, while the sum is 57.

The spelling of 1252538789025 in words is "one trillion, two hundred fifty-two billion, five hundred thirty-eight million, seven hundred eighty-nine thousand, twenty-five".