1252500520425 has 96 divisors (see below), whose sum is σ = 2601487494144. Its totient is φ = 516545952000.

The previous prime is 1252500520387. The next prime is 1252500520433. The reversal of 1252500520425 is 5240250052521.

It is a happy number.

It is not a de Polignac number, because 1252500520425 - 2¹⁷ = 1252500389353 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (33).

It is an unprimeable number.

It is a polite number, since it can be written in 95 ways as a sum of consecutive naturals, for example, 71274 + ... + 1584323.

It is an arithmetic number, because the mean of its divisors is an integer number (27098828064).

Almost surely, 2^{1252500520425} is an apocalyptic number.

1252500520425 is a gapful number since it is divisible by the number (15) formed by its first and last digit.

It is an amenable number.

1252500520425 is an abundant number, since it is smaller than the sum of its proper divisors (1348986973719).

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

1252500520425 is a wasteful number, since it uses less digits than its factorization.

1252500520425 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1655759 (or 1655754 counting only the distinct ones).

The product of its (nonzero) digits is 40000, while the sum is 33.

Adding to 1252500520425 its reverse (5240250052521), we get a palindrome (6492750572946).

The spelling of 1252500520425 in words is "one trillion, two hundred fifty-two billion, five hundred million, five hundred twenty thousand, four hundred twenty-five".