1325895065551 has 4 divisors (see below), whose sum is σ = 1515308646352. Its totient is φ = 1136481484752.

The previous prime is 1325895065531. The next prime is 1325895065557. The reversal of 1325895065551 is 1555605985231.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 1325895065551 - 2²⁷ = 1325760847823 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 1325895065492 and 1325895065501.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1325895065557) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 94706790390 + ... + 94706790403.

It is an arithmetic number, because the mean of its divisors is an integer number (378827161588).

Almost surely, 2^{1325895065551} is an apocalyptic number.

1325895065551 is a deficient number, since it is larger than the sum of its proper divisors (189413580801).

1325895065551 is an equidigital number, since it uses as much as digits as its factorization.

1325895065551 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 189413580800.

The product of its (nonzero) digits is 8100000, while the sum is 55.

The spelling of 1325895065551 in words is "one trillion, three hundred twenty-five billion, eight hundred ninety-five million, sixty-five thousand, five hundred fifty-one".