1325544553501 has 16 divisors (see below), whose sum is σ = 1582221905280. Its totient is φ = 1086736599360.

The previous prime is 1325544553469. The next prime is 1325544553511. The reversal of 1325544553501 is 1053554455231.

It is a cyclic number.

It is not a de Polignac number, because 1325544553501 - 2⁵ = 1325544553469 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 (1325544553511) 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 15 ways as a sum of consecutive naturals, for example, 43357030 + ... + 43387591.

It is an arithmetic number, because the mean of its divisors is an integer number (98888869080).

Almost surely, 2^{1325544553501} is an apocalyptic number.

It is an amenable number.

1325544553501 is a deficient number, since it is larger than the sum of its proper divisors (256677351779).

1325544553501 is an equidigital number, since it uses as much as digits as its factorization.

1325544553501 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 86744724.

The product of its (nonzero) digits is 900000, while the sum is 43.

The spelling of 1325544553501 in words is "one trillion, three hundred twenty-five billion, five hundred forty-four million, five hundred fifty-three thousand, five hundred one".