1325887765253 has 4 divisors (see below), whose sum is σ = 1326924426240. Its totient is φ = 1324851104268.

The previous prime is 1325887765249. The next prime is 1325887765333. The reversal of 1325887765253 is 3525677885231.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 1325887765253 - 2² = 1325887765249 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1325887765753) 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 3 ways as a sum of consecutive naturals, for example, 518328575 + ... + 518331132.

It is an arithmetic number, because the mean of its divisors is an integer number (331731106560).

Almost surely, 2^{1325887765253} is an apocalyptic number.

It is an amenable number.

1325887765253 is a deficient number, since it is larger than the sum of its proper divisors (1036660987).

1325887765253 is a wasteful number, since it uses less digits than its factorization.

1325887765253 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1036660986.

The product of its digits is 84672000, while the sum is 62.

The spelling of 1325887765253 in words is "one trillion, three hundred twenty-five billion, eight hundred eighty-seven million, seven hundred sixty-five thousand, two hundred fifty-three".